原生js做的手风琴效果的导航菜单

做好的手风琴效果如下，具体看代码：
 
html代码
复制代码 代码如下:






#accordion{
width:200px;
}
#accordion ul{
list-style: none;
display:none;
}
.first-level{
background-color: #d8d8d8;
background-color: rgba(236, 208, 208, 0.53);
border-radius: 4px;
display: block;
cursor: pointer;
position: relative;
margin: 2px 0 0 0;
padding: 8px;
min-height: 0;
}

level one

• first item


• second item


• third item

level one

• first item


• second item


• third item

level one

• first item


• second item


• third item