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HomeWeb Front-endCSS TutorialHow to reset css style? Summary of 8 css default style reset codes in web pages

The content of this article is to introduce how to reset the CSS style, and summarizes some commonly used CSS default style reset codes to share with you. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

When designing and developing web pages, the most troublesome thing is to make the page compatible with major browsers, or to be more precise, compatible with their "default" CSS style sheets. Then, "erasing" these CSS default style sheets has become the primary issue, and there is also the term CSS default style sheet reset. In order to make the page display consistent across different browsers, it is necessary to clear and reset the css default style.

Let me share with you some commonly used css default style reset codes for your reference only.

1. Margin and padding values ​​(inner and outer margins) of css initialization tags in all browsers

body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, /* structural elements 结构元素 */
dl, dt, dd, ul, ol, li, /* list elements 列表元素 */
pre, /* text formatting elements 文本格式元素 */
form, fieldset, legend, button, input, textarea, /* form elements 表单元素 */
th, td /* table elements 表格元素 */ {
  margin: 0;
  padding: 0;
}

2. CSS reset page element style

body {background:#fff}   /* 重置body 页面背景为白色 */
body,th,td,input,select,textarea,button {  /* 重置页面文字属性 */
      font-size:12px;line-height:1 ;font-family:"微软雅黑", "黑体","宋体";color:#666;
}

/** css重置样式标签的样式 **/
h1 { font-size: 18px; /* 18px / 12px = 1.5 */ }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
h4, h5, h6 { font-size: 100%; }
address,caption,cite,code,dfn,em,var {font-style:normal;font-weight:normal}  /* 将斜体扶正*/
code, kbd, pre, samp { font-family: courier new, courier, monospace; } /* 统一等宽字体 */
small { font-size: 12px; } /* 小于 12px 的中文很难阅读,让 small 正常化 */

3. css reset list element style

dl,ul,ol,menu,li {list-style:none}   /* 重置类表前导符号为onne,menu在HTML5中有效 */

4. css reset text format element style (mouse effect)

/** 重置链接a标签 **/

a {color:#666;text-decoration:none}  /* 重置链接a标签样式*/
a:active, a:hover {text-decoration:none}   /* 重置链接a标签的鼠标滑动效果 */

/* 取消a标签点击后的虚线框 */
a {outline: none;}  
a:active {star:expression(this.onFocus=this.blur());}

/** 设置页面文字等在拖动鼠标选中情况下的背景色与文字颜色 **/
/* 
::selection {color: #fff;background-color: #4C6E78;}    
::-moz-selection {color: #fff;background-color: #4C6E78;} 
*/

5.css reset form element style

legend { color: #000; } /* for ie6 */
fieldset,img {border:0 none}  /* 重置fieldset(表单分组)、图片的边框为0*/
button, input, select, textarea { 
     font-size: 100%; /* 使得表单元素在ie下能继承字体大小, */
     vertical-align:middle;  /* 重置表单控件垂直居中*/
} 
/* 注:optgroup 无法扶正 */

/* 重置表单button按钮效果 */
button {border:0 none;background-color:transparent;cursor:pointer} 

img{vertical-align:top}  /* 图片在当前行内的垂直位置 */

6.css reset table element style

caption {display:none;}    /* 重置表格标题为隐藏 */
table {width:100%;border-collapse:collapse;border-spacing:0;table-layout:fixed;}    /* 重置table属性 */

7. Clear floats

/*清除浮动*/
.clear{clear: both;}
 
/*清除浮动--推荐使用*/
.clearfix:before,.clearfix:after{content: '';display: table;}
.clearfix:after{clear: both;}

8. CSS reset nested references

blockquote, q {quotes: none}   /* 重置嵌套引用的引号类型 */
blockquote:before, blockquote:after,q:before, q:after {content:'';content:none}  /* 重置嵌套引用*/

Summary: That’s it for this article All the codes for commonly used css to reset the default style have been summarized. You can try it yourself to deepen your understanding. I hope it will be helpful to everyone's learning. For more related tutorials, please visit: CSS basic video tutorial, HTML video tutorial, bootstrap video tutorial!

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