wcssdu 2019-06-21
1.box-sizing: border-box;不可继承
2.浮动布局:子元素float:left;
3.清除浮动的方式
.row:before, .row:after { content:""; display:table; clear:both; }
4.媒体查询:@media(min-width:768px){
.col-md-1 { background:red; }
}
5.calc使用方法
width: calc(8.3% - 20px);
<!DOCTYPE html> <html> <head> <title>IFE08</title> <meta charset="utf-8"> <link rel="stylesheet" type="text/css" href="css/normalize.css"> <link rel="stylesheet" href="css/IFE08.css"> </head> <body> <div class="container"> <div class="row"> <div class="col-md-4">col-md-4</div> <div class="col-md-4">col-md-4</div> <div class="col-md-4">col-md-4</div> </div> <div class="row"> <div class="col-md-3">col-md-3</div> <div class="col-md-6">col-md-6</div> <div class="col-md-3">col-md-3</div> </div> <div class="row"> <div class="col-md-1">col-md-1</div> <div class="col-md-1">col-md-1</div> <div class="col-md-2">col-md-2</div> <div class="col-md-2">col-md-2</div> <div class="col-md-6">col-md-6</div> </div> </div> </body> </html>
.container { padding: 10px; } .row { margin-bottom: 20px; } .row > div { border: solid 1px #999; background: #eee; height: 50px; margin: 10px; box-sizing: border-box; } .row:before, .row:after { content:""; display:table; clear:both; } @media (min-width: 768px) { .col-md-1 { width: calc(8.333333% - 20px); } .col-md-2 { width: calc(16.6666667% - 20px); } .col-md-3 { width: calc(25% - 20px); } .col-md-4 { width: calc(33.3333333% - 20px); } .col-md-6 { width: calc(50% - 20px); } .col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-6 { float: left; } }
background-color: blue;background-color: yellow;<input type="button" value="变蓝" @click="changeColorT