.post_close_btn{position:absolute;top:10px;right:10px;width:40px;height:40px;padding:0;margin:0;border:none;background:rgba(0,0,0,.5);color:#fff;font-size:28px;line-height:1;cursor:pointer;border-radius:50%;z-index:10000;display:flex;align-items:center;justify-content:center;transition:.3s}.post_close_btn:hover{background:rgba(0,0,0,.8);transform:scale(1.1)}.post_close_btn:focus{outline:0;box-shadow:0 0 0 3px rgba(0,123,255,.5)}.el-icon-arrow-right{display:inline-block;margin-left:5px;transition:transform .3s}.el-collapse-item__header{display:flex;align-items:center;justify-content:space-between;padding:15px;background:#f5f5f5;cursor:pointer;margin-bottom:1px;transition:background-color .3s}.el-collapse-item__header:hover{background:#e9e9e9}.el-collapse-item__header.is-active{background:#e0e0e0}