.collapsible{max-height:400px;overflow:hidden;position:relative;transition:max-height 0.5s ease-out}.collapsible::after{content:'';position:absolute;bottom:0;left:0;right:0;height:200px;background:linear-gradient(rgba(255,255,255,0),rgba(255,255,255,1));pointer-events:none}.button-collapse{display:block;width:auto;padding:10px 20px;margin:20px auto;text-align:center;background-color:#bcaa71;color:#fff;cursor:pointer;border:none;outline:none;bottom:20px;transition:bottom 0.3s ease,left 0.3s ease;position:absolute;left:50%;transform:translateX(-50%);z-index:10}.button-collapse:hover{background-color:#BCA250}