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              <div class="flex-box">
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
	<div class="flex-box__item"></div>
</div>
            
          
!
            
              //赤い要素に幅があれば、
//横に詰めていって、入らなくなったら wrap する指定
//ラップした上で横方向均等揃えになる

.flex-box
	width: 200px
	background-color: blue
	//おやう要素に flex を指定
	display: flex
	//横並びを指定する
	flex-direction: row
	//左、右は詰めて、あとは均等揃え
	justify-content: space-between
	//垂直方向を真ん中揃え
	align-items: center
	//折り返しを許可
	flex-wrap: wrap
	
	&__item
		width: 50px
		height: 10px
		background-color: red
		border: solid 1px black
	

            
          
!
999px
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