微信小程序 弹框和模态框实现代码

 <view class="wxapp-modal" style="{{modal_style}}">
      <view class="content">
      </view>
     <view class="mask" bindtap="closeModal"></view>
    </view>

/*模态框*/
.wxapp-modal{
 width: 100%;
 height: 100%;
 position: fixed;
 top: 0px;
 left: 0px;
 z-index:999;
}
.wxapp-modal .content{
 width: 100%;
 bottom: 10px;
 text-align: center;
 position: absolute;
}
.wxapp-modal .content .header{
 margin: auto;
 width: 93%;
 height: 60px;
 line-height: 60px;
 text-align: center;
 background-color: #FFFFFF;
 position: relative;
 z-index:9999;
 border-top-left-radius: 8px;
 border-top-right-radius: 8px;
 border-bottom: 1px #eee solid;
}
.wxapp-modal .content .body{
 margin: auto;
 width: 93%;
 background-color: #FFFFFF;
 position: relative;
 z-index:9999;
 border-bottom-left-radius: 8px;
 border-bottom-right-radius: 8px;
 overflow: hidden;
}
.wxapp-modal .content .footer{
 margin: auto;
 width: 93%;
 height: 60px;
 line-height: 60px;
 background-color: #FFFFFF;
 position: relative;
 z-index: 9999;
 border-radius: 8px;
 margin-top: 10px;
 text-align: center;
}
.wxapp-modal .content .footer button{
 display: inline-block;
 width: 49%;
 height: 60px;
 line-height: 60px;
 background-color: #FFFFFF;
 margin-left: 0px;
}
.wxapp-modal .content .footer button:active{
 background-color: #eee;
}
.wxapp-modal .content .footer button::after{
 content:none;
}
.wxapp-modal .content .footer .cancel{
 color: #fa5b43;
 border-right: 1px #eee solid;
 border-top-right-radius: 0px;
 border-bottom-right-radius: 0px;
 border-top-left-radius: 8px;
 border-bottom-left-radius: 8px;
}
.wxapp-modal .content .footer .confirm{
 color: #1ed3fa;
 border-top-left-radius: 0px;
 border-bottom-left-radius: 0px;
 border-top-right-radius: 8px;
 border-bottom-right-radius: 8px;
}
.wxapp-modal .mask{
 width: 100%;
 height: 100%;
 position: fixed;
 top: 0px;
 background-color:rgba(0,0,0,0.5);
}