整理下初学时做过的js基础编程题目和大家分享以下,如果大家觉得有用,别忘了点一下赞哦
css3
用css3写一个drawer 抽屉从下到上的动画
视频链接:链接
html部分
<ul class="wrap">
<li></li>
<li>
<span>菜单</span>
<ul class="menu">
<li>内容1</li>
<li>内容2</li>
<li>内容3</li>
<li>内容4</li>
</ul>
</li>
<li></li>
<li></li>
</ul>
css部分
body,
ul {
margin: 0;
padding: 0;
}
ul {
list-style: none;
}
.wrap {
margin: 50px auto;
width: 400px;
height: 50px;
border: 1px solid;
background-color: aqua;
/* overflow: hidden; */
}
.wrap > li {
position: relative;
float: left;
width: 100px;
height: 100%;
line-height: 50px;
text-align: center;
box-sizing: border-box;
}
.wrap > li::before {
position: absolute;
right: 0;
top: 0;
display: block;
content: '';
height: 100%;
width: 0;
border-right: 1px solid;
background-color: black;
}
.wrap > li:last-child::before {
border: none;
}
.wrap > li:nth-child(2)::after {
position: absolute;
top: 50%;
margin-top: -15px;
right: 5px;
display: block;
content: '<';
transform: rotateZ(90deg);
width: 30px;
height: 30px;
line-height: 30px;
}
.wrap > li:hover::after {
transform: rotateZ(-90deg);
}
.wrap > li:hover .menu {
transition: background 2s, height 2s;
background-color: palevioletred;
height: 200px;
}
.menu {
display: block;
position: absolute;
top: calc(100% + 1px);
width: 150px;
overflow: hidden;
transition: height 2s;
height: 0;
background-color: pink;
}
.menu > li {
width:150px;
height:50px;
border: 1px solid;
border-top:0;
box-sizing: border-box;
}