CSS初始化代码详解：打造响应式布局-优快云博客

本文详细介绍了如何使用CSS代码来清除元素默认样式、调整字体、列表样式、图片处理、按钮行为、链接样式，并展示了常用的布局技巧如居中、对齐和弹性盒子。通过这些代码，可以快速创建一个干净且可维护的前端页面布局。

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css初始化页面代码

/* 清除元素默认的内外边距 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* 让所有斜体不倾斜 */
em,
i {
  font-style: normal;
}
/* 去掉列表前面的小点 */
li {
  list-style: none;
}
/* 图片没有边距  去掉图片底侧的空白缝隙 */
img {
  border: 0;
  vertical-align: middle;
}
/* 让button按钮变成小手 */
button {
  cursor: pointer;
}
/* 取消链接下面的下划线 */
a {
  color: #666;
  text-decoration: none;
}
a:hover {
  color: #e33333;
}
button,
input {
  outline: none;
}
body {
  color: #666;
  background-color: #fff;
}
.hide,
.none {
  display: none;
}
/*清除浮动  */
.clearfix::after {
  visibility: hidden;
  clear: both;
  display: block;
  content: '.';
  height: 0;
}
.clearfix {
  *zoom: 1;
}
.p5 {
     padding: 5px;
 }
 .p10 {
     padding: 10px;
 }
 .p15 {
     padding: 15px;
 }
 .p20 {
     padding: 20px;
 }
 .p25 {
     padding: 25px;
 }
 .p30 {
     padding: 30px;
 }
 .pl20 {
     padding-left: 20px;
 }
 .pl10 {
     padding-left: 10px;
 }
 .pt5 {
     padding-top: 5px;
 }
 .pt10 {
     padding-top: 10px;
 }
 .pt20 {
     padding-top: 20px;
 }
 .pr10 {
     padding-right: 10px;
 }
 .pr15 {
     padding-right: 15px;
 }
 .pl15 {
     padding-left: 15px;
 }
 .pb0 {
     padding-bottom: 0px;
 }
 .pb5 {
     padding-bottom: 5px;
 }
 .pb10 {
     padding-bottom: 10px;
 }

 .mt5 {
     margin-top: 5px;
 }
 .mr5 {
     margin-right: 5px;
 }
 .mb5 {
     margin-bottom: 5px;
 }
 .mb8 {
     margin-bottom: 8px;
 }
 .mb15 {
     margin-bottom: 15px;
 }
 .ml5 {
     margin-left: 5px;
 }
 .mt5 {
     margin-top: 5px;
 }
 .mt10 {
     margin-top: 10px;
 }
 .mt15 {
     margin-top: 15px;
 }
 .mr10 {
     margin-right: 10px;
 }
 .mr15 {
     margin-right: 15px;
 }
 .mb10 {
     margin-bottom: 10px;
 }
 .mb30 {
     margin-bottom: 30px;
 }
 .ml10 {
     margin-left: 10px;
 }
 .mt20 {
     margin-top: 20px;
 }
 .mt25 {
     margin-top: 25px;
 }
 .mr20 {
     margin-right: 20px;
 }
 .ml25 {
     margin-left: 25px;
 }
 .mb20 {
     margin-bottom: 20px;
 }
 .mb25 {
     margin-bottom: 25px;
 }
 .ml15 {
     margin-left: 15px;
 }
 .ml20 {
     margin-left: 20px;
 }
 .ml30 {
     margin-left: 30px;
 }
 .fz10 {
     font-size: 10px;
 }
 .fz12 {
     font-size: 12px;
 }
 .fz13 {
     font-size: 13px;
 }
 .fz14 {
     font-size: 14px;
 }
 .fz15 {
     font-size: 15px;
 }
 .fz16 {
     font-size: 16px;
 }
 .fz18 {
     font-size: 18px;
 }
 .fz20 {
     font-size: 20px;
 }
 .fz22 {
     font-size: 22px;
 }
 .fz24 {
     font-size: 24px;
 }
 .fz28 {
     font-size: 28px;
 }
 .fz32 {
     font-size: 32px;
 }
 .fw {
     font-weight: 700;
 }
 .fwNo {
     font-weight: normal;
 }
 .ws-o-to {
     overflow: hidden;
     text-overflow: ellipsis;
     white-space: nowrap;
 }
 .h1,
 .h2,
 .h3,
 .h4,
 .h5,
 .h6,
 h1,
 h2,
 h3,
 h4,
 h5,
 h6 {
     font-family: inherit;
     font-weight: 500;
     line-height: 1.1;
     color: inherit;
 }
 .pull-right {
     float: right !important;
 }
 .pull-left {
     float: left !important;
 }
 .ua {
     position: absolute;
 }
  .ub {
     display: flex;
     position: relative;
 }
 .ur {
     position: relative;
 }
 .flex {
     display: -webkit-flex;
     /* Safari */
     -webkit-flex-flow: row;
     /* Safari 6.1+ */
     flex-flow: row;
     /* Safari 6.1+ */
     display: flex;
 }
 .f-inline {
     display: inline-flex
 }
 .f-row {
     flex-direction: row
 }
 .f-row1 {
     flex-direction: row-reverse
 }
 .f-col {
     flex-direction: column
 }
 .f-col1 {
     flex-direction: column-reverse
 }
 /* 排序方式 */
 .center {
     justify-content: center;
     align-items: center
 }
 .f-ac {
     align-items: center
 }
 .f-as {
     align-items: flex-start
 }
 .f-ae {
     align-items: flex-end
 }
 .f-jc {
     justify-content: center;
 }
 .f-js {
     justify-content: flex-start;
 }
 .f-je {
     justify-content: flex-end;
 }
 .f-jb {
     justify-content: space-between;
 }
 .f-column {
     flex-direction: column;
 }
 .f-jsa {
     justify-content: space-around;
 }
 .row-center {
     flex-flow: row wrap;
     justify-content: center;
     align-items: center
 }
 .row-between {
     flex-flow: row wrap;
     justify-content: space-between;
     align-items: center
 }
 .row-around {
     flex-flow: row wrap;
     justify-content: space-around;
     align-items: center
 }
 .col-center {
     flex-flow: column wrap;
     justify-content: center;
     align-items: center
 }
 .col-between {
     flex-flow: column wrap;
     justify-content: space-between;
     align-items: center
 }
 .col-around {
     flex-flow: column wrap;
     justify-content: space-around;
     align-items: center
 }
 .self-start {
     align-self: flex-start;
 }
 .self-stretch {
     align-self: stretch;
 }
 .self-center {
     align-self: center;
 }
 .self-end {
     align-self: flex-end;
 }
 .flex1 {
     flex: 1 !important;
 }
 .flex2 {
     flex: 2 !important;
 }
 .flex3 {
     flex: 3 !important;
 }
 .flex4 {
     flex: 4 !important;
 }
 .flex5 {
     flex: 5 !important;
 }
 .flex6 {
     flex: 6 !important;
 }
 .flex7 {
     flex: 7 !important;
 }
 .flex8 {
     flex: 8 !important;
 }
 .flex9 {
     flex: 9 !important;
 }
 .flex10 {
     flex: 10 !important;
 }
 .w0 {
     width: 0px;
 }
 .w100 {
     width: 100%;
 }
 .h100 {
     height: 100%;
 }
 .h0 {
     height: 0px;
 }
 /* 设置滚动条的样式 -start*/
 ::-webkit-scrollbar {
     width:8px;
     height: 8px;
 }
 /* 滚动槽 */
 ::-webkit-scrollbar-track {
     -webkit-box-shadow:inset006pxrgba(0,0,0,0.3);
     border-radius:10px;
 }
 /* 滚动条滑块 */
 ::-webkit-scrollbar-thumb {
     border-radius:10px;
     background:rgba(0,0,0,0.1);
     -webkit-box-shadow:inset006pxrgba(0,0,0,0.5);
 }
 ::-webkit-scrollbar-thumb:window-inactive {
     background:rgba(0,0,0,0.2);
 }
 /* 设置滚动条的样式 -end*/