欢迎大家来到我的博客,我是一个web小白,希望可以通过博客来了解学习更多知识,谢谢大家。
今天,我对网页的布局和导航栏进行了简单的了解,下面和大家分享一些自己的笔记。
网页简单布局结构与表现原则:
在网页布局中,html:结构化,css:表现化,JavaScript:行为化,三者存在分离又存在结合(一种思想)。
那么什么是分离呢?并不是简简单单的分开编辑,如上所说,html是指向结构的,我们在制作时,
应该先把html进行结构化,简洁化,再在此基础上进行css,实现真正的分离和结合。在初步的制作时,我们不应该过分追求
样式,先在html的结构和语义化上进行努力。
用最大化的简化html的结构,然后用css进行设置,减少html和css的契合度。
看到网页设计图时,先进行html的结构,语义化,再进行css设计。
---- text-indent 文本缩进。(简化代码)
导航菜单的制作:
①垂直菜单
用无序列表构造
清除圆点:list-style:none
清除下划线:text-decoration:none
**定义的关键是将标签设置为块元素,增加hover的效果。
ul li a{display:block;}
a:hover{}增加菜单的交互效果。
延伸回顾:块级元素(block)的特点:1 每个块级元素都会独自霸道一行。
2 元素的高,宽,行高以及顶和底边距都可以设定。
3 宽度不设置时,与父元素一致。
内联元素(inline)的特点:1 与其他元素在同一行上。
2 元素的高,宽,行高以及顶和底边距都不可以设定。
3 元素的宽度不可以改变。
内联块状元素(block-inline)特点:1 与其他元素在同一行上。
2 元素的高,宽,行高以及顶和底边距都可以设定。
②水平菜单
在垂直菜单的基础上对li进行浮动
li{
float:left
}
③圆角菜单
在水平菜单的基础上有两种方法:
1.为ul增加一个border-bottom,再为a标签增加一个圆角的图片背景。移动背景:background-position:
2. 使用border-radius。
以上学习内容来自:慕课网。 http://www.imooc.com/course/program
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The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

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HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

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