Correcting teacher:PHPz
Correction status:qualified
Teacher's comments:
代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>一个简单的登陆表单</title>
</head>
<body>
<form action="" method="post">
<div>
<label for="email">邮箱</label>
<input type="text" name="email" id="email" value="" placeholder="请输入邮箱" onfocus>
</div>
<div>
<label for="psw">密码</label>
<input type="password" name="password" id="psw" value="" placeholder="请输入密码">
</div>
<div>
<button>登陆</button>
</div>
</form>
</body>
</html>
预览:
代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>一个简单的后台框架</title>
<style>
body {
height: 100vh;
width: 100vw;
display: grid;
grid-template-columns: 10em 1fr;
grid-template-rows: 6em 1fr;
margin: 0;
}
body .header {
grid-column-end: span 2;
border-bottom: 1px solid currentColor;
background-color: #efe;
padding: 2em;
display: flex;
align-items: center;
}
body .header div {
margin-left: auto;
}
body .nav {
background-color: #efc;
margin: 0;
padding-top: 1em;
list-style: none;
}
body iframe {
width: calc(100vw - 10em);
height: calc(100vh - 6em);
border-left: 1px solid currentColor;
}
</style>
</head>
<body>
<!-- 后台顶部 -->
<div class="header">
<span>你好admin</span>,<a href="">退出</a>
</div>
<!-- 后台左侧导航 -->
<ul class="nav" id="left" style="list-style: none;float: left;background-color: blanchedalmond;">
<li><a href="login.html" target="content">菜单1</a></li>
<li><a href="login.html" target="content">菜单2</a></li>
<li><a href="login.html" target="content">菜单3</a></li>
<li><a href="login.html" target="content">菜单4</a></li>
</ul>
<!-- 后台右侧内容主体 -->
<iframe srcdoc="请点击左侧栏目导航" src="" name="content" frameborder="1" width="400" height="600"></iframe>
</body>
</html>
预览图:
<h2>Hello world</h2>
<!-- 虽然没有定义颜色,但是浏览器默认的颜色是黑色 -->
<h2 style="color:red">Hello world</h2>
<!-- 自定义的红色覆盖了默认的黑色 -->
<h2 style="color:red;color:green">Hello world</h2>
<!-- 实际会显示绿色的 -->
<div style="color:red;"><h2>Hello world</h2></div>
<!-- 继承了父元素的同名属性 -->
<div style="color:green"><a>php中文网</a></div>
<!-- a元素的样式并不会继承父元素的绿色样式,而是显示紫色 -->
<style></style>
标签
<link rel="stylesheet" href="static/css/style.css" />
<!-- 引用方式一 -->
<style>@import url(static/css/style.css);</style>
<!-- 引用方式二,常用语CSS模块化的时候 -->
<h2 style="color:red;color:green !important;">Hello world</h2>
<!-- !important 覆盖了其他的样式声明 -->