css sticker footer

.detail
      position: fixed
      z-index: 100
      top: 0
      left: 0
       100%
      height: 100%
      overflow: auto
      .detail-wrapper
         100%
        min-height: 100%
        .detail-main
          margin-top: 64px
          padding-bottom: 64px
      .detail-close
        position: relative
         32px
        height: 32px
        margin: -64px auto 0 auto
        clear: both
        font-size: 32px