Flexbox布局
如下所示的代码，实现了flexbox布局，
<!doctype html>
<head>
<style>
:root {
box-sizing: border-box;
}
*,
::before,
::after {
box-sizing: inherit;
}
body {
background-color: #709b90;
font-family: Helvetica, Arial, sans-serif;
}
body * + * {
margin-top: 1.5em;
}
.container {
max- 1080px;
margin: 0 auto;
}
.site-nav {
display: flex;
padding: .5em;
background-color: #5f4b44;
list-style-type: none;
border-radius: .2em;
}
.site-nav > li {
margin-top: 0;
}
.site-nav > li > a {
display: block;
padding: .5em 1em;
background-color: #cc6b5a;
color: white;
text-decoration: none;
}
.site-nav > li + li {
margin-left: 1.5em;
}
.site-nav > .nav-right {
margin-left: auto;
}
.tile {
padding: 1.5em;
background-color: #fff;
}
.flex {
display: flex;
}
.flex > * + * {
margin-top: 0;
margin-left: 1.5em;
}
.column-main {
flex: 2;
}
.column-sidebar {
flex: 1;
display: flex;
flex-direction: column;
}
.column-sidebar > .tile {
flex: 1;
}
.login-form h3 {
margin: 0;
font-size: .9em;
font-weight: bold;
text-align: right;
text-transform: uppercase;
}
.login-form input:not([type=checkbox]):not([type=radio]) {
display: block;
margin-top: 0;
100%;
}
.login-form button {
margin-top: 1em;
border: 1px solid #cc6b5a;
background-color: white;
padding: .5em 1em;
cursor: pointer;
}
</style>
</head>
<body>
<div class="container">
<header>
<h1>Ink</h1>
</header>
<nav>
<ul class="site-nav">
<li><a href="/">Home</a></li>
<li><a href="/features">Features</a></li>
<li><a href="/pricing">Pricing</a></li>
<li><a href="/support">Support</a></li>
<li class="nav-right">
<a href="/about">About</a>
</li>
</ul>
</nav>
<main class="flex">
<div class="column-main tile">
<h1>Team collaboration done right</h1>
<p>Thousands of teams from all over the
world turn to <b>Ink</b> to communicate
and get things done.</p>
</div>
<div class="column-sidebar">
<div class="tile">
<form class="login-form">
<h3>Login</h3>
<p>
<label for="username">Username</label>
<input id="username" type="text"
name="username"/>
</p>
<p>
<label for="password">Password</label>
<input id="password" type="password"
name="password"/>
</p>
<button type="submit">Login</button>
</form>
</div>
<div class="tile centered">
<small>Starting at</small>
<div class="cost">
<span class="cost-currency">$</span>
<span class="cost-dollars">20</span>
<span class="cost-cents">.00</span>
</div>
<a class="cta-button" href="/pricing">
Sign up
</a>
</div>
</div>
</main>
</div>
</body>