前端清除项目默认样式【拿去即用】

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📒技术聊斋

（一）创建normalize.scss

在src/assets路径下创建normalize.scss 或者后缀为.less 的样式文件

/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css *//* Document========================================================================== *//*** 1. Correct the line height in all browsers.* 2. Prevent adjustments of font size after orientation changes in iOS.*//* div的默认样式不存在padding和margin为0的情况*/html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul,fieldset, form, label, legend,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary,time, mark, audio, video {margin: 0;padding: 0;font-size: 100%;font: inherit;vertical-align: baseline;}/* HTML5 display-role reset for older browsers */article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {display: block;}html {line-height: 1.15; /* 1 */-webkit-text-size-adjust: 100%; /* 2 */}/* Sections========================================================================== *//*** Remove the margin in all browsers.*/body {margin: 0;background-color: #f7f7f7;font-family: 'Microsoft YaHei';font-size: 15px;}/*** Render the `main` element consistently in IE.*/main {display: block;}/*** Correct the font size and margin on `h1` elements within `section` and* `article` contexts in Chrome, Firefox, and Safari.*//* Grouping content========================================================================== *//*** 1. Add the correct box sizing in Firefox.* 2. Show the overflow in Edge and IE.*/hr {box-sizing: content-box; /* 1 */height: 0; /* 1 */overflow: visible; /* 2 */}/*** 1. Correct the inheritance and scaling of font size in all browsers.* 2. Correct the odd `em` font sizing in all browsers.*/pre {font-family: monospace, monospace; /* 1 */font-size: 1em; /* 2 */}/* Text-level semantics========================================================================== *//*** Remove the gray background on active links in IE 10.*/a {background-color: transparent;text-decoration: none;}/*** 1. Remove the bottom border in Chrome 57-* 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.*/abbr[title] {border-bottom: none; /* 1 */text-decoration: underline; /* 2 */text-decoration: underline dotted; /* 2 */}/*** Add the correct font weight in Chrome, Edge, and Safari.*/b,strong {font-weight: bolder;}/*** 1. Correct the inheritance and scaling of font size in all browsers.* 2. Correct the odd `em` font sizing in all browsers.*/code,kbd,samp {font-family: monospace, monospace; /* 1 */font-size: 1em; /* 2 */}/*** Add the correct font size in all browsers.*/small {font-size: 80%;}/*** Prevent `sub` and `sup` elements from affecting the line height in* all browsers.*/sub,sup {font-size: 75%;line-height: 0;position: relative;vertical-align: baseline;}sub {bottom: -0.25em;}sup {top: -0.5em;}/* Embedded content========================================================================== *//*** Remove the border on images inside links in IE 10.*/img {display: block;border-style: none;}/* Forms========================================================================== *//*** 1. Change the font styles in all browsers.* 2. Remove the margin in Firefox and Safari.*/button,input,optgroup,select,textarea {font-family: inherit; /* 1 */font-size: 100%; /* 1 */line-height: 1.15; /* 1 */margin: 0; /* 2 */}/*** Show the overflow in IE.* 1. Show the overflow in Edge.*/button,input { /* 1 */overflow: visible;}/*** Remove the inheritance of text transform in Edge, Firefox, and IE.* 1. Remove the inheritance of text transform in Firefox.*/button,select { /* 1 */text-transform: none;}/*** Correct the inability to style clickable types in iOS and Safari.*/button,[type="button"],[type="reset"],[type="submit"] {-webkit-appearance: button;}/*** Remove the inner border and padding in Firefox.*/button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner {border-style: none;padding: 0;}/*** Restore the focus styles unset by the previous rule.*/button:-moz-focusring,[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring {outline: 1px dotted ButtonText;}/*** Correct the padding in Firefox.*/fieldset {padding: 0.35em 0.75em 0.625em;}/*** 1. Correct the text wrapping in Edge and IE.* 2. Correct the color inheritance from `fieldset` elements in IE.* 3. Remove the padding so developers are not caught out when they zero out*    `fieldset` elements in all browsers.*/legend {box-sizing: border-box; /* 1 */color: inherit; /* 2 */display: table; /* 1 */max-width: 100%; /* 1 */padding: 0; /* 3 */white-space: normal; /* 1 */}/*** Add the correct vertical alignment in Chrome, Firefox, and Opera.*/progress {vertical-align: baseline;}/*** Remove the default vertical scrollbar in IE 10+.*/textarea {overflow: auto;}/*** 1. Add the correct box sizing in IE 10.* 2. Remove the padding in IE 10.*/[type="checkbox"],[type="radio"] {box-sizing: border-box; /* 1 */padding: 0; /* 2 */}/*** Correct the cursor style of increment and decrement buttons in Chrome.*/[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button {height: auto;}/*** 1. Correct the odd appearance in Chrome and Safari.* 2. Correct the outline style in Safari.*/[type="search"] {-webkit-appearance: textfield; /* 1 */outline-offset: -2px; /* 2 */}/*** Remove the inner padding in Chrome and Safari on macOS.*/[type="search"]::-webkit-search-decoration {-webkit-appearance: none;}/*** 1. Correct the inability to style clickable types in iOS and Safari.* 2. Change font properties to `inherit` in Safari.*/::-webkit-file-upload-button {-webkit-appearance: button; /* 1 */font: inherit; /* 2 */}/* Interactive========================================================================== *//** Add the correct display in Edge, IE 10+, and Firefox.*/details {display: block;}/** Add the correct display in all browsers.*/summary {display: list-item;}/* Misc========================================================================== *//*** Add the correct display in IE 10+.*/template {display: none;}/*** Add the correct display in IE 10.*/[hidden] {display: none;}ul, li { list-style: none; }

（二）main.js 文件内引入

import "./normalize.scss";//清除默认样式

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