HTML+CSS+div学习――第一课_html/css_WEB-ITnose
一、介绍HTML
（1）HTML是通过浏览器查看的
（2）网页是通过HTML制作出来的
（3）HTML是超文本标记语言，是一种描述网页内容的特殊符号，不是编程语言
（4）HTML最基本的语言就是内容标识符>，标识符通常都是成对使用的，有一个开头标志和一个结束标志。
（5）标记分为两种：单标记、双标记
单标记：有开始、没结束的标记（有属性值，无属性值）
双标记：有开始、有结束的标记（有属性值，无属性值）
二、标记介绍
（1）内容：控制字体，属性有（size，color），双标记
（2） 内容：字体加粗，无属性，双标记
（3）
：添加横线，属性有（width），单标记
（4）
：换行，无属性，单标记
三、上代码
<font color="blue" size="5"><b>这是一段测试文本</b></font>
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