[TOC] #### StickyFooter 布局 1. html 结构 ~~~ <div class="modal"> <div class="modal-wrapper clear-fix"> <div class="modal-wrapper-main"> </div> </div> <div class="modal-close"><span class="iconfont">&#xe600;</span></div> </div> ~~~ 2. css 样式 ~~~ .modal width 100% height 100% background-color $color-modal-bg; position fixed top 0 left 0 z-index $z-index-modal overflow auto &-wrapper width 100% min-height 100% display inline-block &-main margin-top 128px padding-bottom 128px &-close font-weight bold position relative width 64px height 64px margin -96px auto 0 auto clear both >span font-size 64px color #fff font-weight bold ~~~