在前端的编程道路上,我曾经听别人对我说过什么编写前端时,要注意html的结构语义化哦。我当时直接采取的是无视。。。
因为我觉得前端嘛,只要做出炫酷的效果,编写出牛逼的JavaScript代码就ok啦。div+css所向无敌,干嘛要用其他标签呢。
哎,想想当时自己有多小白菜。。。
不错正如上面所说,div+css的确能实现一切效果,用户体验也棒棒哒。
但,请明白div是没有语义的,我们是能看懂,但是搜索引擎呢?我们呈现出来的网页是需要计算机连接互联网传达给别人,而负责中转的计算机不可能像人一样去看网页的内容,所以我们需要语义化。
例如我想加粗一个字体,我们可以有以下几种写法
1、 css:
2、 b标签:SEO
3、 strong标签:SEO
其实,就效果而言,大家都差不多。然而,它们的意义是不一样的。
1、2种写法只是以加粗的形式显示内容,无法被搜索引擎知道,而第三种,strong标签是有语义的,它表示强调。所以如果你是的本意是想强调,那选择第三种写法才是符合语义的。而如果,你只是想显示效果,那就随便咯。
其实,web语义化不仅能让搜索引擎理解,开发人员也是一样。
倘若我们才拿到一段html代码,在不运行它的情况下,是不是我们一开始是蒙的,不知道这些代码的寓意,然而,如果我们是采用语义化编写代码,文档结构就明朗多啦。
在很久以前,我对html5中的什么header、nav呲之以鼻,想想是多么单纯。当时,我去面试的时候,别人问我,了解html5吗。我说了解过。他说,那你谈谈对header、nav这些标签的理解。我当时二笔的说,其实跟div差不多,就是框框而已。哎,无知的少年呢。。。
下面列举几个语义标签:
html标签 |
语义 |
title |
网页标题 |
h1~h6 |
大纲级别标题 |
caption |
表格标题,指定表格描述 |
legend |
表单元素 |
p |
段落 |
ul |
无序列表 |
ol |
有序列表 |
dl |
自定义列表 |
em |
局部强调,段落内强调 |
strong |
全文强调,更加强烈的强调 |
今天上班维护别人的bug,好累。
睡觉咯,晚安,everyon~

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