.lookbooks .collapsible{background-color:#eee;color:#444;cursor:pointer;padding:18px;width:100%;border:none;text-align:left;outline:none;font-size:15px;transition:background-color .4s;margin-bottom:5px;position:relative}.lookbooks .collapsible:hover,.collapsible.active{background-color:#ccc}.lookbooks .collapsible:after{content:'+';font-size:20px;color:#777;position:absolute;right:18px;top:50%;transform:translateY(-50%)}.lookbooks .collapsible.active:after{content:"−"}.lookbooks .collapsible-content{padding:0 18px;background-color:#fff;max-height:0;overflow:hidden;transition:max-height .3s ease-out}