Correcting teacher:天蓬老师
Correction status:qualified
Teacher's comments:
01内联框架标签工作原理
- target= name(
a herf
标签的target属性等于iframe
标签的name属性发生交互)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>内联框架标签工作原理</title>
<style>
iframe {
width: 30em;
height: 16em;
}
</style>
</head>
<body>
<a href="https://j.map.baidu.com/86/VpE", target="yangj">阳江地图</a>
<iframe src="" name = "yangj"></iframe>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>内联框架标签工作原理</title>
<style>
iframe {
width: 30em;
height: 16em;
}
div {
display: grid;
}
</style>
</head>
<body>
<!-- 标题 -->
<div class="header">网站管理后台</div>
<!-- 侧边栏 -->
<a href="https://docs.qq.com/desktop/mydoc/folder/1IYzC_100000" target="content">实务</a>
<a href="https://docs.qq.com/desktop/mydoc/folder/1IYzC_100000" target="content">体验馆</a>
<div>
<div class='mian'></div>
<iframe srcdoc="请点击右侧按钮" name="content"></iframe>
</div>
</body>
</html>
术语:
选择器
、规则、属性和值
,声明块
选择器:h1,id,class,style等
声明块:{、、、}
属性和值:键值对,color:blue
规则:选择器+声明块
外部写法:<link rel="stylesheet" href="001.css">
推荐多使用,养成习惯
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<style>
h1 {
color: #007aff;
font-weight: 200;
}
</style>
<body>
<header class="page-header"></header>
<h1 id="page-title" class="title">web</h1>
</body>
</html>
css优先级与基础语法
01优先级
1.标签选择器(h1)
2.属性选择器(class、id)
3.id>class>tag
02基础语法
1.css中的class写可以#,id可以写成.
2.*代表所有
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<style>
h1 {
color: #007aff;
}
.title {
color: #ff1700;
}
#page-title {
color: #cb954f;
}
</style>
<body>
<h1 id="page-title" class="title">哈哈</h1>
</body>
</html>