Ask God for advice! Thank you_html/css_WEB-ITnose

Reply to discussion (solution)

Wouldn’t it be enough to just add an ID to the first one?
#column1
{
Width:200px;
}

Can’t we just add an ID to the first one?
#column1
{
width:200px;
}

Thanks. . . It was an epiphany all of a sudden. . . . I actually want to set 3 different widths in one class. . . So short-sighted. . . .

1, 2, 3; the content of the floor

can generate 3 stories

using CSS :first-child selector

1 , 2, 3; the content of the floor

can generate 3 stories

Alas. . . ACCIDENT! ! ! ! However, how to make the last two divs the same width~~~~The front is still a fixed value of 200px~

Use CSS :first-child selector

Yes, yes. . . . hey-hey. . . .

<style type="text/css">	.box{		width:100%;		height:100px;		background-color:#CCC;		/*定义和盒模型*/		display:-webkit-box;		}	.item{		margin:3px;		background-color:#999;		/*3列栏目为一个整体盒布局效果*/		box-sizing:border-box;		}	.item:nth-child(1){				width:200px;				}		.item:nth-child(2){		/*自适应大小*/		-webkit-box-flex:1;				}	.item:nth-child(3){		/*自适应大小*/		-webkit-box-flex:1;	}</style>

That’s it~