代码copy下来了，前端们看一眼就明白了，大神做的工作主要还是兼容性问题，那个reset还是老老实实不用写了吧。。
/*! normalize.css v8.0.0 | 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. */html { line-height: 1.15; /* 1 */ -webkit-text-size-adjust: 100%; /* 2 */}/* Sections ========================================================================== *//** * Remove the margin in all browsers. */body { margin: 0;}/** * Correct the font size and margin on `h1` elements within `section` and * `article` contexts in Chrome, Firefox, and Safari. */h1 { font-size: 2em; margin: 0.67em 0;}/* 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;}/** * 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 { 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;}复制代码