主要是利用flex的一些特性来写的，掌握好flex基础，写出筛子的几个页面不是问题。
推荐去我写的一个博客中有flex的小练习 线上练习flex布局
html
<body>
<div class="shaizi">
<div class="top">
<div class="box1 box">
<span class="item"></span>
</div>
<div class="box2 box">
<span class="item"></span>
<span class="item"></span>
</div>
<div class="box3 box">
<span class="item"></span>
<span class="item"></span>
<span class="item"></span>
</div>
</div>
<div class="bottom">
<div class="box4 box">
<div class="box4_top">
<span class="item"></span>
<span class="item"></span>
</div>
<div class="box4_buttom">
<span class="item"></span>
<span class="item"></span>
</div>
</div>
<div class="box5 box">
<div class="box5_top">
<span class="item"></span>
<span class="item"></span>
</div>
<div class="box5_center">
<span class="item"></span>
</div>
<div class="box5_buttom">
<span class="item"></span>
<span class="item"></span>
</div>
</div>
<div class="box6 box">
<div class="box6_top">
<span class="item"></span>
<span class="item"></span>
</div>
<div class="box6_center">
<span class="item"></span>
<span class="item"></span>
</div>
<div class="box6_buttom">
<span class="item"></span>
<span class="item"></span>
</div>
</div>
</div>
</div>
</body>
css
<style>
.shaizi {
1400px;
height: 600px;
margin: auto;
border: 2px solid #ddd;
border-radius: 10px;
padding: 20px;
display: flex;
flex-wrap: wrap;
/* flex-direction: column;; */
}
.item {
display: block;
40px;
height: 40px;
border-radius: 50%;
background-color: #666;
}
.box{
200px;
height: 200px;
border: 2px solid #ccc;
border-radius: 10px;
padding: 20px;
display: flex;
}
.top {
display: flex;
1400px;
justify-content: space-around;
}
.bottom{
display: flex;
1400px;
justify-content: space-around;
}
.box1 {
justify-content: center;
align-items: center;
}
.box2 {
justify-content: space-between;
align-items: center;
}
.box3 {
justify-content: space-between;
/* 两端对齐 */
}
.box3 .item:nth-child(2) {
align-self: center;
/* 上下左右居中对齐 */
}
.box3 .item:nth-child(3) {
align-self: flex-end;
/* 尾对齐 */
}
.box4 {
flex-direction: column;
justify-content: space-between;
}
.box4_top{
200px;
height: 100px;
display: flex;
justify-content: space-between;
align-items: center;
}
.box4_buttom{
200px;
height: 100px;
display: flex;
justify-content: space-between;
align-items: center;
}
.box5{
flex-direction: column;
justify-content: space-between;
}
.box5_top{
display: flex;
justify-content: space-between;
}
.box5_center{
display: flex;
justify-content: center;
}
.box5_buttom{
display: flex;
justify-content: space-between;
}
.box6{
flex-direction: column;
justify-content: space-between;
}
.box6_top{
display: flex;
justify-content: space-between;
}
.box6_center{
display: flex;
justify-content: space-between;
}
.box6_buttom{
display: flex;
justify-content: space-between;
}
</style>
效果
