css工具类封装

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温馨提示：一下css封装，建议按需使用，否则会造成很大的代码冗余，且很多样式会造成不符合预期的效果，建议合理使用
function.css
/* 禁止选中文本 */
.usn{
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  -o-user-select:none;
  user-select:none;
}
/* 浮动 */
.fl { float: left; }
.fr { float: right; }
.cf { zoom: 1; }
.cf:after {
  content:".";
  display:block;
  clear:both;
  visibility:hidden;
  height:0;
  overflow:hidden;
}
 
/* 元素类型 */
.db { display: block; }
.dn { display: none; }
.di { display: inline }
.dib {display: inline-block;}
.transparent { opacity: 0 }
 
 
/*文字排版、颜色*/
.f12 { font-size:12px }
.f14 { font-size:14px }
.f16 { font-size:16px }
.f18 { font-size:18px }
.f20 { font-size:20px }
.fb { font-weight:bold }
.fn { font-weight:normal }
.t2 { text-indent:2em }
.red,a.red { color:#cc0031 }
.darkblue,a.darkblue { color:#039 }
.gray,a.gray { color:#878787 }
.lh150 { line-height:150% }
.lh180 { line-height:180% }
.lh200 { line-height:200% }
.unl { text-decoration:underline; }
.no_unl { text-decoration:none; }
.tl { text-align: left; }
.tc { text-align: center; }
.tr { text-align: right; }
.tj { text-align: justify; text-justify: inter-ideograph; }
.wn { /* 强制不换行 */
  word-wrap:normal;
  white-space:nowrap;
}
.wb { /* 强制换行 */
  white-space:normal;
  word-wrap:break-word;
  word-break:break-all;
}
.wp { /* 保持空白序列*/
  overflow:hidden;text-align:left;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;
}
.wes { /* 多出部分用省略号表示 , 用于一行 */
  overflow:hidden;
  word-wrap:normal;
  white-space:nowrap;
  text-overflow:ellipsis;
}
.wes-2 { /* 适用于webkit内核和移动端 */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.wes-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}
.wes-4 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
}
 
/* 溢出样式 */
.ofh { overflow: hidden; }
.ofs {overflow: scroll; }
.ofa {overflow: auto; }
.ofv {overflow: visible; }
 
/* 定位方式 */
.ps {position: static; }
.pr {position: relative;zoom:1; }
.pa {position: absolute; }
.pf {position: fixed; }
 
 
/* 垂直对齐方式 */
.vt {vertical-align: top; }
.vm {vertical-align: middle; }
.vb {vertical-align: bottom; }
 
 
/* 鼠标样式 */
.csd {cursor: default; }
.csp {cursor: pointer; }
.csh {cursor: help; }
.csm {cursor: move; }
 
/* flex布局 */
.df-sb {
  display:flex;
  align-items: center;
  justify-content: space-between;
}
.df-sa {
  display:flex;
  align-items: center;
  justify-content: space-around;
}
 
/* 垂直居中 */
.df-c {
  display: flex;
  align-items: center;
  justify-content: center;
}
.tb-c {
  text-align:center;
  display:table-cell;
  vertical-align:middle;
}
.ts-c {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
}
.ts-mc {
  position: absolute;
  left: 0;right: 0;
  bottom: 0; top: 0;
  margin: auto;
}
 
/* 辅助 */
.mask-fixed-wrapper {
  width: 100%;
  height: 100%;
  position: fixed;
  left:0;top:0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 999;
}
.bg-cover {
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
}
.bg-cover-all {
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center center;
}

 

 
PC端
/* normalize.css */
 
html {
 line-height: 1.15;
 /* 1 */
 -ms-text-size-adjust: 100%;
 /* 2 */
 -webkit-text-size-adjust: 100%;
 /* 2 */
}
 
body {
 margin: 0;
}
 
article,
aside,
footer,
header,
nav,
section {
 display: block;
}
 
h1 {
 font-size: 2em;
 margin: 0.67em 0;
}
 
figcaption,
figure,
main {
 /* 1 */
 display: block;
}
 
figure {
 margin: 1em 40px;
}
 
hr {
 box-sizing: content-box;
 /* 1 */
 height: 0;
 /* 1 */
 overflow: visible;
 /* 2 */
}
 
pre {
 font-family: monospace, monospace;
 /* 1 */
 font-size: 1em;
 /* 2 */
}
 
a {
 background-color: transparent;
 /* 1 */
 -webkit-text-decoration-skip: objects;
 /* 2 */
}
 
abbr[title] {
 border-bottom: none;
 /* 1 */
 text-decoration: underline;
 /* 2 */
 text-decoration: underline dotted;
 /* 2 */
}
 
b,
strong {
 font-weight: inherit;
}
 
b,
strong {
 font-weight: bolder;
}
 
code,
kbd,
samp {
 font-family: monospace, monospace;
 /* 1 */
 font-size: 1em;
 /* 2 */
}
 
dfn {
 font-style: italic;
}
 
mark {
 background-color: #ff0;
 color: #000;
}
 
small {
 font-size: 80%;
}
 
sub,
sup {
 font-size: 75%;
 line-height: 0;
 position: relative;
 vertical-align: baseline;
}
 
sub {
 bottom: -0.25em;
}
 
sup {
 top: -0.5em;
}
 
audio,
video {
 display: inline-block;
}
 
audio:not([controls]) {
 display: none;
 height: 0;
}
 
img {
 border-style: none;
}
 
svg:not(:root) {
 overflow: hidden;
}
 
button,
input,
optgroup,
select,
textarea {
 font-family: sans-serif;
 /* 1 */
 font-size: 100%;
 /* 1 */
 line-height: 1.15;
 /* 1 */
 margin: 0;
 /* 2 */
}
 
button,
input {
 /* 1 */
 overflow: visible;
}
 
button,
select {
 /* 1 */
 text-transform: none;
}
 
button,
html [type="button"],
 
/* 1 */
 
[type="reset"],
[type="submit"] {
 -webkit-appearance: button;
 /* 2 */
}
 
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
 border-style: none;
 padding: 0;
}
 
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
 outline: 1px dotted ButtonText;
}
 
fieldset {
 padding: 0.35em 0.75em 0.625em;
}
 
legend {
 box-sizing: border-box;
 /* 1 */
 color: inherit;
 /* 2 */
 display: table;
 /* 1 */
 max-width: 100%;
 /* 1 */
 padding: 0;
 /* 3 */
 white-space: normal;
 /* 1 */
}
 
progress {
 display: inline-block;
 /* 1 */
 vertical-align: baseline;
 /* 2 */
}
 
textarea {
 overflow: auto;
}
 
[type="checkbox"],
[type="radio"] {
 box-sizing: border-box;
 /* 1 */
 padding: 0;
 /* 2 */
}
 
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
 height: auto;
}
 
[type="search"] {
 -webkit-appearance: textfield;
 /* 1 */
 outline-offset: -2px;
 /* 2 */
}
 
[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
 -webkit-appearance: none;
}
 
 ::-webkit-file-upload-button {
 -webkit-appearance: button;
 /* 1 */
 font: inherit;
 /* 2 */
}
 
details,
 
/* 1 */
 
menu {
 display: block;
}
 
summary {
 display: list-item;
}
 
canvas {
 display: inline-block;
}
 
template {
 display: none;
}
 
[hidden] {
 display: none;
}
 
 
/* reset */
 
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; box-sizing: border-box;
}

 

 
移动端 
/* normalize.css */
 
html {
 line-height: 1.15;
 /* 1 */
 -ms-text-size-adjust: 100%;
 /* 2 */
 -webkit-text-size-adjust: 100%;
 /* 2 */
}
 
body {
 margin: 0;
}
 
article,
aside,
footer,
header,
nav,
section {
 display: block;
}
 
h1 {
 font-size: 2em;
 margin: 0.67em 0;
}
 
figcaption,
figure,
main {
 /* 1 */
 display: block;
}
 
figure {
 margin: 1em 40px;
}
 
hr {
 box-sizing: content-box;
 /* 1 */
 height: 0;
 /* 1 */
 overflow: visible;
 /* 2 */
}
 
pre {
 font-family: monospace, monospace;
 /* 1 */
 font-size: 1em;
 /* 2 */
}
 
a {
 background-color: transparent;
 /* 1 */
 -webkit-text-decoration-skip: objects;
 /* 2 */
}
 
abbr[title] {
 border-bottom: none;
 /* 1 */
 text-decoration: underline;
 /* 2 */
 text-decoration: underline dotted;
 /* 2 */
}
 
b,
strong {
 font-weight: inherit;
}
 
b,
strong {
 font-weight: bolder;
}
 
code,
kbd,
samp {
 font-family: monospace, monospace;
 /* 1 */
 font-size: 1em;
 /* 2 */
}
 
dfn {
 font-style: italic;
}
 
mark {
 background-color: #ff0;
 color: #000;
}
 
small {
 font-size: 80%;
}
 
sub,
sup {
 font-size: 75%;
 line-height: 0;
 position: relative;
 vertical-align: baseline;
}
 
sub {
 bottom: -0.25em;
}
 
sup {
 top: -0.5em;
}
 
audio,
video {
 display: inline-block;
}
 
audio:not([controls]) {
 display: none;
 height: 0;
}
 
img {
 border-style: none;
}
 
svg:not(:root) {
 overflow: hidden;
}
 
button,
input,
optgroup,
select,
textarea {
 font-family: sans-serif;
 /* 1 */
 font-size: 100%;
 /* 1 */
 line-height: 1.15;
 /* 1 */
 margin: 0;
 /* 2 */
}
 
button,
input {
 /* 1 */
 overflow: visible;
}
 
button,
select {
 /* 1 */
 text-transform: none;
}
 
button,
html [type="button"],
 
/* 1 */
 
[type="reset"],
[type="submit"] {
 -webkit-appearance: button;
 /* 2 */
}
 
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
 border-style: none;
 padding: 0;
}
 
button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
 outline: 1px dotted ButtonText;
}
 
fieldset {
 padding: 0.35em 0.75em 0.625em;
}
 
legend {
 box-sizing: border-box;
 /* 1 */
 color: inherit;
 /* 2 */
 display: table;
 /* 1 */
 max-width: 100%;
 /* 1 */
 padding: 0;
 /* 3 */
 white-space: normal;
 /* 1 */
}
 
progress {
 display: inline-block;
 /* 1 */
 vertical-align: baseline;
 /* 2 */
}
 
textarea {
 overflow: auto;
}
 
[type="checkbox"],
[type="radio"] {
 box-sizing: border-box;
 /* 1 */
 padding: 0;
 /* 2 */
}
 
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
 height: auto;
}
 
[type="search"] {
 -webkit-appearance: textfield;
 /* 1 */
 outline-offset: -2px;
 /* 2 */
}
 
[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
 -webkit-appearance: none;
}
 
 ::-webkit-file-upload-button {
 -webkit-appearance: button;
 /* 1 */
 font: inherit;
 /* 2 */
}
 
details,
 
/* 1 */
 
menu {
 display: block;
}
 
summary {
 display: list-item;
}
 
canvas {
 display: inline-block;
}
 
template {
 display: none;
}
 
[hidden] {
 display: none;
}
 
 
/* reset */
 
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;
 box-sizing: border-box;
}
 
html,
body {
 /* 禁止选中文本 */
 -webkit-user-select: none;
 user-select: none;
 font: Oswald, ‘Open Sans‘, Helvetica, Arial, sans-serif
}
 
 
/* 禁止长按链接与图片弹出菜单 */
 
a,
img {
 -webkit-touch-callout: none;
}
 
 
/*ios android去除自带阴影的样式*/
 
a,
input {
 -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
 
input[type="text"] {
 -webkit-appearance: none;
}

 

 
 

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