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
<a href="https://meyerweb.com/eric/tools/css/reset/">Reset.css</a>
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 { /* 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 { 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 { /* 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 { 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; }