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<div id="app"><div class="Layout" data-v-5d98c3a5><!--[--><!--]--><!--[--><span tabindex="-1" data-v-0b0ada53></span><a href="#VPContent" class="VPSkipLink visually-hidden" data-v-0b0ada53>Skip to content</a><!--]--><!----><header class="VPNav" data-v-5d98c3a5 data-v-ae24b3ad><div class="VPNavBar has-sidebar top" data-v-ae24b3ad data-v-6aa21345><div class="wrapper" data-v-6aa21345><div class="container" data-v-6aa21345><div class="title" data-v-6aa21345><div class="VPNavBarTitle has-sidebar" data-v-6aa21345 data-v-1168a8e4><a class="title" href="/vue-h5-template/" data-v-1168a8e4><!--[--><!--]--><!----><span data-v-1168a8e4>Vue-H5-Template</span><!--[--><!--]--></a></div></div><div class="content" data-v-6aa21345><div class="content-body" data-v-6aa21345><!--[--><!--]--><div class="VPNavBarSearch search" data-v-6aa21345><!--[--><!----><div id="docsearch"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search"><span class="DocSearch-Button-Container"><span class="vp-icon DocSearch-Search-Icon"></span><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"><kbd class="DocSearch-Button-Key"></kbd><kbd class="DocSearch-Button-Key">K</kbd></span></button></div><!--]--></div><nav aria-labelledby="main-nav-aria-label" class="VPNavBarMenu menu" data-v-6aa21345 data-v-dc692963><span id="main-nav-aria-label" class="visually-hidden" data-v-dc692963> Main Navigation </span><!--[--><!--[--><a class="VPLink link VPNavBarMenuLink" href="/vue-h5-template/guide/" tabindex="0" data-v-dc692963 data-v-e56f3d57><!--[--><span data-v-e56f3d57>介绍</span><!--]--></a><!--]--><!--[--><a class="VPLink link VPNavBarMenuLink" href="/vue-h5-template/guide/about/" tabindex="0" data-v-dc692963 data-v-e56f3d57><!--[--><span data-v-e56f3d57>加入我们</span><!--]--></a><!--]--><!--[--><a class="VPLink link vp-external-link-icon VPNavBarMenuLink" href="https://github.com/sunniejs/vue-h5-template" target="_blank" rel="noreferrer" 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data-v-bb2aa2f0><div class="VPSocialLinks social-links-list" data-v-bb2aa2f0 data-v-7bc22406><!--[--><a class="VPSocialLink no-icon" href="https://github.com/sunniejs/vue-h5-template" aria-label="github" target="_blank" rel="noopener" data-v-7bc22406 data-v-bd121fe5><span class="vpi-social-github"></span></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-8a42e2b4><button data-v-8a42e2b4>Return to top</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>前言</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>介绍</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/start.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>快速上手</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/edit.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>参与编辑</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>vue3-template</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/start.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>启动项目</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/base.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>vite.config.ts 基础配置</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/vite.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>vite插件集成</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/env.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>多环境变量</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/viewport.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>viewport 适配方案</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/ui.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>UI组件库</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/pinia.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Pinia 状态管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/router.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>vue-router</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/axios.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>axios 封装及接口管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/alias.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>alias</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/proxy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>proxy 跨域</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/i18n.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>多语言解决方案</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/lint.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>统一开发规范</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible has-active" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>vue2-template</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b3fd67f8><span class="vpi-chevron-right caret-icon" data-v-b3fd67f8></span></div></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/start.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>启动项目</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/env.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>多环境变量</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/rem.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>rem 适配方案</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vw.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>vw 适配方案</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vant.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>VantUI 组件按需加载</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/sass.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Sass 全局样式</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vuex.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Vuex 状态管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/router.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Vue-router</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/axios.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Axios 封装及接口管理</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/base.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>vue.config.js 基础配置</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/alias.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>配置 alias 别名</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/proxy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>配置 proxy 跨域</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/bundle.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>配置 打包分析</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/externals.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>配置 externals 引入 cdn 资源</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/console.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>去掉 console.log</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/chunks.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>splitChunks 打包第三方模块</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/ie.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>添加 IE 兼容</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/lint.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>统一开发规范</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible collapsed" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>其他</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b3fd67f8><span class="vpi-chevron-right caret-icon" data-v-b3fd67f8></span></div></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/vue-h5-template/guide/other/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>常见问题</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>On this page</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _vue-h5-template_guide_vue2_rem" data-v-39a288b8><div><h1 id="rem-适配方案" tabindex="-1">rem 适配方案 <a class="header-anchor" href="#rem-适配方案" aria-label="Permalink to "rem 适配方案""></a></h1><p>不用担心，项目已经配置好了 <code>rem</code> 适配, 下面仅做介绍：</p><p>Vant 中的样式默认使用<code>px</code>作为单位，如果需要使用<code>rem</code>单位，推荐使用以下两个工具:</p><ul><li><a href="https://github.com/cuth/postcss-pxtorem" target="_blank" rel="noreferrer">postcss-pxtorem</a> 是一款 <code>postcss</code> 插件，用于将单位转化为 <code>rem</code></li><li><a href="https://github.com/amfe/lib-flexible" target="_blank" rel="noreferrer">lib-flexible</a> 用于设置 <code>rem</code> 基准值</li></ul><h5 id="postcss-配置" tabindex="-1">PostCSS 配置 <a class="header-anchor" href="#postcss-配置" aria-label="Permalink to "PostCSS 配置""></a></h5><p>下面提供了一份基本的 <code>postcss</code> 配置，可以在此配置的基础上根据项目需求进行修改</p><div class="language-javascript vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">javascript</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// https://github.com/michael-ciniawsky/postcss-load-config</span></span>
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<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">module</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">.</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">exports</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;"> =</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> plugins: {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> autoprefixer: {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> overrideBrowserslist: [</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "Android 4.1"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "iOS 7.1"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "Chrome > 31"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "ff > 31"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "ie >= 8"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> ],</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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<span class="line"><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "postcss-pxtorem"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">: {</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> rootValue: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">37.5</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">,</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> propList: [</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"*"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">],</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> },</span></span>
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<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">};</span></span></code></pre></div><p>更多详细信息： <a href="https://youzan.github.io/vant/#/zh-CN/quickstart#jin-jie-yong-fa" target="_blank" rel="noreferrer">vant</a></p><p><strong>新手必看，老鸟跳过</strong></p><p>很多小伙伴会问我，适配的问题，因为我们使用的是 Vant UI，所以必须根据 Vant UI 375 的设计规范走，一般我们的设计会将 UI 图上传到蓝湖，我们就可以得到需要的尺寸了。下面就简单普及一下 rem 适配的原理。</p><p>我们知道 <code>1rem</code> 等于<code>html</code> 根元素设定的 <code>font-size</code> 的 <code>px</code> 值。Vant UI 设置 <code>rootValue: 37.5</code>，你可以看到在 iPhone 6 下看到 （<code>1rem 等于 37.5px</code>）：</p><div class="language-html vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">html</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"><</span><span style="--shiki-light:#22863A;--shiki-dark:#85E89D;">html</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> data-dpr</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"1"</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> style</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"font-size: 37.5px;"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">></</span><span style="--shiki-light:#22863A;--shiki-dark:#85E89D;">html</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">></span></span></code></pre></div><p>切换不同的机型，根元素可能会有不同的<code>font-size</code>。当你写 css px 样式时，会被程序换算成 <code>rem</code> 达到适配。</p><p>因为我们用了 Vant 的组件，需要按照 <code>rootValue: 37.5</code> 来写样式。</p><p>举个例子：设计给了你一张 750px * 1334px 图片，在 iPhone6 上铺满屏幕，其他机型适配。</p><ul><li>当<code>rootValue: 70</code> , 样式 <code>width: 750px;height: 1334px;</code> 图片会撑满 iPhone6 屏幕，这个时候切换其他机型，图片也会跟着撑满。</li><li>当<code>rootValue: 37.5</code> 的时候，样式 <code>width: 375px;height: 667px;</code> 图片会撑满 iPhone6 屏幕。</li></ul><p>也就是 iphone 6 下 375px 宽度写 CSS。其他的你就可以根据你设计图，去写对应的样式就可以了。</p><p>当然，想要撑满屏幕你可以使用 100%，这里只是举例说明。</p><div class="language-html vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">html</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"><</span><span style="--shiki-light:#22863A;--shiki-dark:#85E89D;">img</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> class</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"image"</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> src</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">=</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"https://www.sunniejs.cn/static/weapp/logo.png"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> /></span></span>
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<span class="line"></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"><</span><span style="--shiki-light:#22863A;--shiki-dark:#85E89D;">style</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">></span></span>
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<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /* rootValue: 75 */</span></span>
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<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> .image</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
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<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> width</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">750</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">px</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> height</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1334</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">px</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
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||
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;"> /* rootValue: 37.5 */</span></span>
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||
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> .image</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> {</span></span>
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||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> width</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">375</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">px</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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||
<span class="line"><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;"> height</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">: </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">667</span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">px</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> }</span></span>
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||
<span class="line"><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"></</span><span style="--shiki-light:#22863A;--shiki-dark:#85E89D;">style</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">></span></span></code></pre></div></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><div class="edit-link" data-v-e257564d><a class="VPLink link vp-external-link-icon no-icon edit-link-button" href="https://github.com/sunniejs/vue-h5-template/blob/docs/docs/guide/vue2/rem.md" target="_blank" rel="noreferrer" data-v-e257564d><!--[--><span class="vpi-square-pen edit-link-icon" data-v-e257564d></span> 在GitHub编辑此页<!--]--></a></div><div class="last-updated" data-v-e257564d><p class="VPLastUpdated" data-v-e257564d data-v-e98dd255>Last updated: <time datetime="2025-08-27T07:49:15.000Z" data-v-e98dd255></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" data-v-e257564d><a class="VPLink link pager-link prev" href="/vue-h5-template/guide/vue2/env.html" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>Previous page</span><span class="title" data-v-e257564d>多环境变量</span><!--]--></a></div><div class="pager" data-v-e257564d><a class="VPLink link pager-link next" href="/vue-h5-template/guide/vue2/vw.html" data-v-e257564d><!--[--><span class="desc" data-v-e257564d>Next page</span><span class="title" data-v-e257564d>vw 适配方案</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-5d98c3a5 data-v-e315a0ad><div class="container" data-v-e315a0ad><p class="message" data-v-e315a0ad>Released under the MIT License.</p><p class="copyright" data-v-e315a0ad>Copyright © 2022-present Fonghehe</p></div></footer><!--[--><!--]--></div></div>
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