.body .item{border:1px dashed #ccc;padding:10px;margin-bottom:10px;cursor:pointer}.body .item.ai{background-color:rgba(255,0,0,.1)}.body .item.life{background-color:rgba(255,255,0,.1)}.body .item.energy{background-color:rgba(0,255,255,.1)}.body .item.art{background-color:rgba(0,0,255,.1)}