我想在浏览器屏幕变窄时在一行中显示两个相同大小的部分，第三部分应该占据下一个整行但它没有正确对齐请有人帮助我并检查我的代码在哪里代码中的问题
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Responsive Layout</title>
<style>
/********** Base styles **********/
* {
box-sizing: border-box;
}
h1 {
margin-bottom: 15px;
}
p {
border: 1px solid black;
background-color: #A52A2A;
width: 90%;
height: 150px;
margin-right: auto;
margin-left: auto;
font-family: Helvetica;
color: white;
}
/* Simple Responsive Framework. */
.row {
width: 100%;
}
/********** Large devices only **********/
@media (min-width: 1200px) {
.col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12{
float: left;
border: 1px solid green;
}
.col-lg-1 {
width: 8.33%;
}
.col-lg-2 {
width: 16.66%;
}
.col-lg-3 {
width: 25%;
}
.col-lg-4 {
width: 33.33%;
}
.col-lg-5 {
width: 41.66%;
}
.col-lg-6 {
width: 50%;
}
.col-lg-7 {
width: 58.33%;
}
.col-lg-8 {
width: 66.66%;
}
.col-lg-9 {
width: 74.99%;
}
.col-lg-10 {
width: 83.33%;
}
.col-lg-11 {
width: 91.66%;
}
.col-lg-12 {
width: 100%;
}
}
/********** Medium devices only **********/
@media (min-width: 992px) and (max-width: 1199px) {
.col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 {
float: left;
border: 1px solid green;
}
.col-md-1 {
width: 8.33%;
}
.col-md-2 {
width: 16.66%;
}
.col-md-3 {
width: 25%;
}
.col-md-4 {
width: 33.33%;
}
.col-md-5 {
width: 41.66%;
}
.col-md-6 {
width: 50%;
}
.col-md-7 {
width: 58.33%;
}
.col-md-8 {
width: 66.66%;
}
.col-md-9 {
width: 74.99%;
}
.col-md-10 {
width: 83.33%;
}
.col-md-11 {
width: 91.66%;
}
.col-md-12{
width:100%;
}
}
</style>
</head>
<body>
<h1>Responsive Layout</h1>
<div class="row">
<div class="col-lg-4 col-md-6"><p>Item 1</p></div>
<div class="col-lg-4 col-md-6"><p>Item 2</p></div>
<div class="col-lg-4 col-md-12"><p>Item 3</p></div>
</div>
</body>
</html>
最佳答案
只需使用适当的 Bootstrap 类属性即可。
p {
border: 1px solid black;
background-color: #A52A2A;
width: 100%;
margin-right: auto;
margin-left: auto;
font-family: Helvetica;
color: white;
}
.col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 {
border: 1px solid rgb(0, 128, 0);
float: left;
padding: 0 15px;
}
关于html - css3 媒体查询 Bootstrap ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38842407/