<style>
.wrapper {
width: 400px;
height: 340px;
margin: 50px auto;
border: 1px solid #dedede;
resize: both;
overflow: hidden;
}
.wrapper .title {
line-height: 40px;
text-align: center;
font-size: 20px;
height: 40px;
box-sizing: border-box;
border-bottom: 1px solid #dddd;
}
.wrapper .content {
display: flex;
flex-direction: row;
flex-wrap: wrap;
width: 100%;
height: 100%;
align-content: flex-start;
}
.wrapper .content .item{
flex: 0 0 100px;
border: 1px solid #f0f;
box-sizing: border-box;
height: 100px;
width: 100px;
}
</style>
<div class="wrapper">
<div class="title">流式佈局</div>
<div class="content">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
<div class="item">5</div>
<div class="item">6</div>
<div class="item">7</div>
</div>
</div>