- 主軸:
Flex容器的主軸主要是用來配置Flex項目,默認是水平方向。 - 側軸:
與主軸垂直的軸稱作側軸,默認是垂直方向的。 - 方向:
默認主軸從左往右,側軸從上到下。
主軸和側軸並不是固定不變的,通過flex-direction可以互換
對瀏覽器的支持不一致
屬性詳解
1.min-width 最小寬度 、max-width 最大寬度
2.flex-direction 調整主軸方向(默認爲水平方向)
flex-direction:column(垂直排列)
flex-direction:row(水平排列)
<!DOCTYPE html>
<html lang="zh">
<head>
<title></title>
</head>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
body {
min-width: 320px;
max-width: 540px;
background-color: white;
margin: 0 auto;
}
header {
height: 108px;
}
header img {
height: 100%;
width: auto;
}
nav {
border: 1px solid #ccc;
padding: 4px;
}
.row {
height: 90px;
display: flex;
border-radius: 5px;
overflow: hidden;
margin-bottom: 5px;
}
.row div {
height: 100%;
flex: 1;
background-color: #ff687a;
border-right: 1px solid white;
}
.row div:nth-child(3) {
border-right: 0;
}
.row div a {
display: block;
}
.row33 {
display: flex;
flex-direction: column;
}
.row33 a {
flex: 1;
text-align: center;
line-height: 45px;
}
.row33 a:first-child {
border-bottom: 1px solid white;
}
nav a {
text-decoration: none;
color: white;
font-size: 14px;
text-shadow: 0 2px 1px rgba(0, 0, 0, .2);
}
.row em {
display: block;
height: 45px;
line-height: 45px;
text-align: center;
font-style: normal;
}
.row i {
display: block;
height: 43px;
width: 43px;
margin: -5px auto;
background: url(images/ctrip.png) no-repeat 0 -127px;
background-size: 104px auto;
/* 瀏覽器前綴 */
-webkit-background-size: 104px;
-moz-background-size: 104px;
-ms-background-size: 104px;
-o-background-size: 104px;
background-position: 0 -288px;
}
.row .icon-flight {
background-position: 0 -124px;
}
</style>
<body>
<header>
<img src="images/banner.jpg" alt="">
</header>
<nav>
<div class="row">
<div><a href="#">
<em>酒店</em>
<i class="icon-flight"></i>
</a>
</div>
<div class="row33">
<a href="#">海外酒店</a>
<a href="#">特價酒店</a>
</div>
<div class="row33">
<a href="#">團購</a>
<a href="#">民宿客棧</a>
</div>
</div>
<div class="row">
<div><a href="#">
<em>酒店</em>
<i></i>
</a>
</div>
<div class="row33">
<a href="#">海外酒店</a>
<a href="#">特價酒店</a>
</div>
<div class="row33">
<a href="#">團購</a>
<a href="#">民宿客棧</a>
</div>
</div>
<div class="row">
<div><a href="#">
<em>酒店</em>
<i></i>
</a>
</div>
<div class="row33">
<a href="#">海外酒店</a>
<a href="#">特價酒店</a>
</div>
<div class="row33">
<a href="#">團購</a>
<a href="#">民宿客棧</a>
</div>
</div>
<div class="row">
<div class="row33">
<a href="#">海外酒店</a>
<a href="#">特價酒店</a>
</a>
</div>
<div class="row33">
<a href="#">海外酒店</a>
<a href="#">特價酒店</a>
</div>
<div class="row33">
<a href="#">團購</a>
<a href="#">民宿客棧</a>
</div>
</div>
</nav>
</body>
</html>
- justify-content 調整主軸對齊(水平對齊)
align-items 調整側軸對齊(垂直對齊)
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
<style type="text/css">
section {
width: 80%;
height: 150px;
margin: 100px auto;
/* 給父親添加 伸縮佈局 */
display: flex;
/* section 最小的寬度是500 */
min-width: 500px;
/*默認水平分佈:row , 垂直分佈
reverse翻轉
*/
flex-direction: row-reverse;
}
section div {
height: 100%;
}
section div:nth-child(1) {
background-color: pink;
width: 200px;
}
section div:nth-child(2) {
background-color: purple;
flex: 2;
}
section div:nth-child(3) {
background-color: red;
flex: 1;
}
</style>
</head>
<body>
<section>
<div>1</div>
<div>2</div>
<div>3</div>
</section>
</body>
</html>