为什么要初始化css样式

Posted 2022-03-27 miluluyo

为什么要初始化css样式

1.浏览器差异

不同浏览器对有些标签的默认值是不同的，如果没对css初始化会出现浏览器之间的页面显示差异

2.提高编码质量

如果不初始化，整个页面做完会很糟糕，重复的css样式很多

 

 

最简单的初始化方法是：（不建议）

 

1 * padding: 0; margin: 0; 

 

淘宝样式 样式初始化

 

 1 body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td  margin:0; padding:0; 
 2 body, button, input, select, textarea  font:12px/1.5tahoma, arial, \5b8b\4f53; 
 3 h1, h2, h3, h4, h5, h6 font-size:100%; 
 4 address, cite, dfn, em, var  font-style:normal; 
 5 code, kbd, pre, samp  font-family:couriernew, courier, monospace; 
 6 small font-size:12px; 
 7 ul, ol  list-style:none; 
 8 a  text-decoration:none; 
 9 a:hover  text-decoration:underline; 
10 sup  vertical-align:text-top; 
11 sub vertical-align:text-bottom; 
12 legend  color:#000; 
13 fieldset, img  border:0; 
14 button, input, select, textarea  font-size:100%; 
15 table  border-collapse:collapse; border-spacing:0; 

 

腾讯QQ官网 样式初始化

 

1 body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,selectmargin:0;padding:0 
2 bodyfont:12px"宋体","Arial Narrow",HELVETICA;background:#fff;-webkit-text-size-adjust:100%; 
3 acolor:#2d374b;text-decoration:none 
4 a:hovercolor:#cd0200;text-decoration:underline 
5 emfont-style:normal 
6 lilist-style:none 
7 imgborder:0;vertical-align:middle 
8 tableborder-collapse:collapse;border-spacing:0 
9 pword-wrap:break-word 

 

新浪官网 样式初始化

 

 1 body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,divmargin:0;padding:0;border:0; 
 2 bodybackground:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow"; 
 3  
 4 ul,ollist-style-type:none; 
 5 select,input,img,selectvertical-align:middle; 
 6  
 7 atext-decoration:none; 
 8 a:linkcolor:#009; 
 9 a:visitedcolor:#800080; 
10 a:hover,a:active,a:focuscolor:#c00;text-decoration:underline;

 

网易官网 样式初始化

1 html overflow-y:scroll; 
2 body margin:0; padding:29px00; font:12px"\5B8B\4F53",sans-serif;background:#ffffff; 
3 div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,ppadding:0; margin:0; 
4 table,td,tr,thfont-size:12px; 
5 lilist-style-type:none; 
6 imgvertical-align:top;border:0; 
7 ol,ul list-style:none; 
8 h1,h2,h3,h4,h5,h6font-size:12px; font-weight:normal; 
9 address,cite,code,em,th font-weight:normal; font-style:normal;