在一般我们写一个自己自定义的HTML的时候,我们会清除样式或者说重置样式
重置样式。清除浏览器默认样式,一切全部用自己的设置,并配置适合设计的基础样式
下面给出所有一般需要清除的样式:
html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu{margin:0;padding:0;}
header,footer,section,article,aside,nav,hgroup,address,figure,figcaption,menu,details{display:block;}
table{ border-collapse : collapse ; border-spacing : 0; }
caption,th{ text-align : left ; font-weight : normal ;}
html,body,fieldset,img,iframe,abbr{ border : 0; }
i,cite,em,var,address,dfn{ font-style : normal ;}
[hidefocus],summary{ outline : 0; }
li{ list-style : none ;}
h1,h2,h3,h4,h5,h6, small { font-size : 100% ;}
sup,sub{ font-size : 83% ;}
pre,code,kbd,samp{ font-family :inherit;}
q:before,q:after{ content : none ;}
textarea{ overflow : auto ;resize: none ;}
label,summary{ cursor : default ;}
a,button{ cursor : pointer ;}
h1,h2,h3,h4,h5,h6,em,strong,b{ font-weight : bold ;}
del,ins,u,s,a,a:hover{ text-decoration : none ;}
body,textarea,input,button,select,keygen,legend{ font : 12px /1.14 arial ,\5b8b\4f 53; color : #333 ; outline : 0; }
body{ background : #fff ;}
a,a:hover{ color : #333 ;}
在开始写代码的时候可以在一开始就把它全部引进去!

HTMLtagsareessentialforstructuringwebpages,enhancingaccessibility,SEO,andperformance.1)Theyareenclosedinanglebracketsandusedinpairstocreateahierarchicalstructure.2)SemantictagslikeandimproveuserexperienceandSEO.3)Creativetagslikeenabledynamicgraphics

Self-closingtagsinHTMLandXMLaretagsthatclosethemselveswithoutneedingaseparateclosingtag,simplifyingmarkupstructureandenhancingcodingefficiency.1)TheyareessentialinXMLforelementswithoutcontent,ensuringwell-formeddocuments.2)InHTML5,usageisflexiblebutr

To build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.

Boolean attributes are special attributes in HTML that are activated without a value. 1. The Boolean attribute controls the behavior of the element by whether it exists or not, such as disabled disable the input box. 2.Their working principle is to change element behavior according to the existence of attributes when the browser parses. 3. The basic usage is to directly add attributes, and the advanced usage can be dynamically controlled through JavaScript. 4. Common mistakes are mistakenly thinking that values need to be set, and the correct writing method should be concise. 5. The best practice is to keep the code concise and use Boolean properties reasonably to optimize web page performance and user experience.

HTML code can be cleaner with online validators, integrated tools and automated processes. 1) Use W3CMarkupValidationService to verify HTML code online. 2) Install and configure HTMLHint extension in VisualStudioCode for real-time verification. 3) Use HTMLTidy to automatically verify and clean HTML files in the construction process.

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.


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