flex 排列

// html
<div class="playlist-container">
	<div class="playlist-main">
		<img src="" class="playlist-img"/>
		<div>内容div>
	div>
div>

// css
.playlist-container{
     
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    margin-top: 10rpx;
    flex-direction: row;
}
.playlist-main{
     
    width: 220rpx;
    padding-bottom: 20rpx;
    position: relative;
}
.playlist-container .playlist-img{
     
    width: 100%;
    height: 220rpx;
    border-radius: 6rpx;
}