HTML学习（2）
文章目录
-
- HTML类
- HTML id属性
- HTML内联框架
- HTML Javascript
- HTML文件路径
-
- HTML头部
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HTML类
使用 如下所示：我们为下面的文章的几块定义了 使用 注意 然后再具有id的标签元素中，我们便可以改变他为指定的样式 id对大小写敏感！ id至少包含一个字符，并且不能包含空格 class与id的区别：同一个class可以由多个HTML元素使用，但是一个id只能被页面的唯一一个HTML元素使用 使用id来进行跳转，类似于书签的跳转： 也可以跳转到另一个界面。 在 JavaScript 中使用 id 属性 使用cities一类，所以我们便可以在中统一设置 他们的类样式，如.cities所示
<html>
<head>
<style>
.cities{
background-color: rgb(249, 255, 207);
color: rgb(33, 113, 120);
margin: 20;
padding: 20;
}
style>
head>
<body>
<div class="cities">
<h2>This is the Titleh2>
<p>
London is the capital city of England.
It is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.
p>
<p>
Standing on the River Thames, London has been a major settlement for two millennia,
its history going back to its founding by the Romans, who named it Londinium.
p>
div>
<div class="cities">
<h2>Parish2>
<p>
Paris is the capital and most populous city of France.
p>
<p>
Situated on the Seine River, it is at the heart of the le-de-France region, also known as the region parisienne.
p>
<p>
Within its metropolitan area is one of the largest population centers in Europe,
with over 12 million inhabitants.
p>
div>
<div class="cities">
<h2>Tokyoh2>
<p>
Tokyo is the capital of Japan,
the center of the Greater Tokyo Area,
and the most populous metropolitan area in the world.
p>
<p>
It is the seat of the Japanese government and the Imperial Palace,
and the home of the Japanese Imperial Family.
p>
<p>
The Tokyo prefecture is part of the world's most populous metropolitan area with 38 million people and the world's largest urban economy.
p>
div>
body>
html>
来定义行内的类，设置此属性，能够为某一行的内容设置样式。<html>
<head>
<style>
.cities{
background-color: rgb(249, 255, 207);
color: rgb(33, 113, 120);
margin: 20;
padding: 20;
}
.red{
color: red;
}
.yellow{
color: brown;
}
style>
head>
<body>
<div class="cities">
<h2>This is the Titleh2>
<p>
London is the capital city of England.
<span class="red"> is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.span>
p>
<p>
Standing on the River Thames, London has been a major settlement for two millennia,
its history going back to its founding by the Romans, who named it Londinium.
p>
div>
<div class="cities">
<h2>Parish2>
<p>
Paris is the capital and most populous city of France.
p>
<span class="red">
Situated on the Seine River, it is at the heart of the le-de-France region, also known as the region parisienne.
span>
<p>
Within its metropolitan area is one of the largest population centers in Europe,
with over 12 million inhabitants.
p>
div>
<div class="cities">
<h2>Tokyoh2>
<p>
Tokyo is the capital of Japan,
the center of the Greater Tokyo Area,
and the most populous metropolitan area in the world.
p>
<p>
It is the seat of the Japanese government and the Imperial Palace,
and the home of the Japanese Imperial Family.
p>
<span class="yellow">
The Tokyo prefecture is part of the world's most populous metropolitan area with 38 million people and the world's largest urban economy.
span>
div>
body>
html>
HTML id属性
id用于为html指定唯一的id属性。id在html中是唯一的，id属性用于为特定样式表进行样式的设置。id的写法：前面是一个#号，后面跟的是id名称，然后再花括号中定义css属性DOCTYPE html>
<html>
<head>
<style>
#ylh{
background-color:rgb(199, 149, 114);
color: black;
text-align: center;
font-size: 50px;
}
.red{
color: red;
}
style>
head>
<body>
<h1>id属性h1>
<p>设置id属性来指定样式p>
<h2 id="ylh">Londonh2>
<div>
<p>
London is the capital city of England.
<span class="red"> is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.span>
p>
<p>
Standing on the River Thames, London has been a major settlement for two millennia,
its history going back to its founding by the Romans, who named it Longinus.
p>
div>
body>
html>
<a href="C1">点击跳转到第一章a>
...
<h2 id="C1">
第一章: xxxxx
h2>
....
<a href="C1">点击跳转到第一章a>
<a href="F:\code\html\test2.html#C1">跳转到另一个界面的标签a>
HTML内联框架