vant-weapp/dist/btn/index.wxss

.van-button{position:relative;color:#333;background-color:#fff;padding-left:15px;padding-right:15px;border-radius:2px;font-size:16px;line-height:45px;height:45px;box-sizing:border-box;text-decoration:none;text-align:center;vertical-align:middle;overflow:visible}.van-button--group{margin-bottom:10px}.van-button::after{content:'';position:absolute;top:0;left:0;width:200%;height:200%;-webkit-transform:scale(.5);transform:scale(.5);-webkit-transform-origin:0 0;transform-origin:0 0;pointer-events:none;box-sizing:border-box;border:0 solid #e5e5e5;border-width:1px;border-radius:4px}.van-button--primary{color:#fff;background-color:#4b0}.van-button--primary::after{border-color:#0a0}.van-button--warn{color:#fff;background-color:#f85}.van-button--warn::after{border-color:#f85}.van-button--danger{color:#fff;background-color:#f44}.van-button--danger::after{border-color:#e33}.van-button--small{display:inline-block;height:30px;line-height:30px;font-size:12px}.van-button--small.van-button--group{margin-bottom:0;margin-right:5px}.van-button--mini{display:inline-block;line-height:21px;height:22px;font-size:10px;padding-left:5px;padding-right:5px}.van-button--mini.van-button--group{margin-bottom:0;margin-right:5px}.van-button--large{border-radius:0;border:none;line-height:50px;height:50px}.van-button--large.van-button--group{margin-bottom:0}.van-button--plain.van-button{background-color:transparent}.van-button--plain.van-button--primary{color:#06bf04}.van-button--plain.van-button--warn{color:#f60}.van-button--plain.van-button--danger{color:#f44}.button-hover{opacity:.9}.van-button--loading{color:transparent;opacity:1}.van-button--loading::before{position:absolute;left:50%;top:50%;content:' ';width:16px;height:16px;margin-left:-8px;margin-top:-8px;border:3px solid #e5e5e5;border-color:#666 #e5e5e5 #e5e5e5 #e5e5e5;border-radius:8px;box-sizing:border-box;-webkit-animation:button-spin .6s linear;animation:button-spin .6s linear;-webkit-animation-iteration-count:infinite;animation-iteration-count:infinite}.van-button--danger.van-button--loading::before,.van-button--primary.van-button--loading::before,.van-button--warn.van-button--loading::before{border-color:#fff rgba(0,0,0,.1) rgba(0,0,0,.1) rgba(0,0,0,.1)}@-webkit-keyframes button-spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@keyframes button-spin{0%{-webkit-transform:rotate(0);transform:rotate(0)}100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}.van-button.van-button--disabled{color:#999!important;background:#f8f8f8!important;border-color:#e5e5e5!important;cursor:not-allowed!important;opacity:1!important}.van-button.van-button--disabled::after{border-color:#e5e5e5!important}.van-button--group.van-button--last{margin-bottom:0;margin-right:0}