html,body{height:100%}body{margin:0;font:16px sans-serif}.container{flex-direction:column;height:100%;display:flex;position:relative}.label{border:3px dashed #aaa;border-radius:10px;justify-content:center;align-items:center;margin:20px;padding:20px;font-size:120%;display:flex;position:absolute;inset:0}.container_hidden .label{display:none}.container_drag .label{border-color:#444;display:flex}.preview-item{vertical-align:bottom;margin:10px;display:inline-block}.preview-item__label{text-align:center}