.bottom-fix { position: fixed; left: 0; bottom: 0; z-index: 1; width: 100%; img { display: block; width: 100%; height: 100%; } .show-area { position: absolute; width: 100%; .per-show { position: fixed; .bottom-bar-item { position: relative; .anchor { position: absolute; } } } .hide { display: none; } } .click-area { position: absolute; top: 0; bottom: 0; width: 100%; .per-click { float: left; } } }