About NORMALIZE.CSS

Before doing the sharing of BOOTSTRAP4 to know this thing, just recently to use, on-the-go study a bit.

Simply put, NORMALIZE.CSS is a CSS reset (style reset) file.

what is CSS RESET?

*{  padding:0;  margin:0;}

This is the simplest CSS reset, and in the actual refactoring, resetting the style is far less simple. The general CSS reset will be as follows.

Body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre, form,fieldset,input,textarea,p,blockquote,th,td {     padding: 0;     margin:0; } table {     border-collapse:collapse;     border-spacing:0; } fieldset,img {     border:0;} address,caption,cite,code,dfn,em,strong,th,var {     font-weight:normal;     Font-style:normal; } ol,ul {     list-style:none;} caption,th {     text-align:left;} h1,h2,h3,h4,h5,h6 {     font-weight:normal;
    
     font-size:100%; } q:before,q:after {     content: ";} abbr,acronym {     border:0;}
    

Above, is for a different browser because of the default style of a clear. Resets the browser's initial style.

OK, after figuring it out, go back to today's point.

where are the different points of normalize.css and CSS reset? 1. Normalize.css is not simply resetting all the styles, preserving the label semantics

The normalize does not have a consistent reset for all tags, but rather has a targeted modification, while preserving the semantics of the label.

2, Normalize.css cover more tags

This is reflected in the HTML5 label.

3, NORMALIZE.CSS modular

/*! Normalize.css v3.0.2 | MIT License | Git.io/normalize *//** * 1. Set default font family to Sans-serif. * 2. Prevent IOS Text Size adjust after orientation change, without disabling * user zoom. */html {font-family:sans-serif;/* 1 */-ms-text-size-adjust:100%;/* 2 */-webkit-text-size-adjust:100%;/* 2 */}/ * * Remove the default margin. */body {margin:0;} /* HTML5 Display definitions ========================================================================== *//** * Correct ' block ' display not defined for any HTML5 element in IE 8/9. * Correct ' block ' Display not defined for ' details ' or ' summary ' in IE 10/11 * and Firefox. * Correct ' block ' Display not defined for ' main ' in IE 11. */article,aside,details,figcaption,figure,footer,header,hgroup,main,menu,nav,section,summary {display:block;} /** * 1. Correct ' inline-block ' Display not defined in IE 8/9. * 2. Normalize vertical alignment of ' progress ' in Chrome, Firefox, and Opera. */audio,canvas,progress,video {DisplaY:inline-block; /* 1 */vertical-align:baseline; /* 2 */}/** * Prevent modern browsers from displaying ' audio ' without controls. * Remove Excess height in IOS 5 devices.  */audio:not ([controls]) {Display:none; height:0;} /** * Address ' [hidden] ' styling not present in IE 8/9/10. * Hide the ' template ' element in IE 8/9/11, Safari, and Firefox < 22. */[hidden],template {display:none;} /* Links ========================================================================== *//** * Remove the gray background Color from active links in IE 10. */a {background-color:transparent;} /** * Improve readability when focused and also mouse hovered on all browsers. */a:active,a:hover {outline:0;} /* Text-level semantics ========================================================================== *//** * Address Styling not present in IE 8/9/10/11, Safari, and Chrome. */abbr[title] {border-bottom:1px dotted;} /** * Address style set to ' bolder ' in Firefox 4+, Safari, and Chrome. */b,strong {font-weight:bold;} /** * Address styling not present in Safari and Chrome. */DFN {font-style:italic;} /** * Address variable ' h1 ' font-size and margin within ' sections ' and ' article ' * Contexts in Firefox 4+, Safari, and Chro Me.  */h1 {font-size:2em; Margin:0.67em 0;} /** * Address styling not present in IE 8/9.  */mark {background: #ff0; Color: #000;} /** * Address inconsistent and variable font size in all browsers. */small {font-size:80%;} /** * Prevent ' Sub ' and ' sup ' affecting ' line-height ' in all browsers.  */sub,sup {font-size:75%;  line-height:0;  position:relative; Vertical-align:baseline;} sup {top: -0.5em;} Sub {bottom: -0.25em;} /* Embedded content ========================================================================== *//** * Remove border When the inside ' a ' element in IE 8/9/10. */img {border:0;} /** * Correct overflow not hidden in IE 9/10/11. */svg:not (: root) {Overflow:hidden;} /* Grouping content ========================================================================== *//** * Address margin not present in IE 8/9 and Safari. */figure {margin:1em 40px;} /** * Address differences between Firefox and other browsers.  */hr {-moz-box-sizing:content-box;  Box-sizing:content-box; height:0;} /** * contain overflow in all browsers. */pre {Overflow:auto;} /** * Address odd ' em '-unit font size rendering in all browsers.  */code,kbd,pre,samp {font-family:monospace, monospace; Font-size:1em;} /* Forms ========================================================================== *//** * Known limitation:by Default, Chrome and Safari on OS X allow very limited * styling of ' select ', unless a ' border ' property is set. *//** * 1. Correct Color not being inherited. * Known issue:affects color of disabled elements. * 2. Correct font properties not being inherited. * 3. Address margins set differently in Firefox 4+, Safari, and Chrome. */button,input,optgroup,select,textarea {color:inherit;/* 1 */font:inherit;/* 2 */ margin:0; /* 3 */}/** * Address ' overflow ' set to ' hidden ' in IE 8/9/10/11. */button {overflow:visible;} /** * Address inconsistent ' text-transform ' Inheritance for ' button ' and ' select '. * All other form control elements does not inherit ' Text-transform ' values. * Correct ' button ' style inheritance in Firefox, IE 8/9/10/11, and Opera. * Correct ' SELECT ' Style inheritance in Firefox. */button,select {text-transform:none;} /** * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native ' audio ' * and ' video ' controls. * 2. Correct inability to style clickable ' input ' types in IOS. * 3. Improve usability and consistency of the cursor style between Image-type * ' input ' and others. */button,html input[type= "button"],/* 1 */input[type= "reset"],input[type= "submit"] {-webkit-appearance:button;/* 2 * /Cursor:pointer; /* 3 */}/** * re-set default cursor for disabled elements. */button[disabled],html input[disabled] {cursor:default;} /** * Remove inner padding and border IN Firefox 4+.  */button::-moz-focus-inner,input::-moz-focus-inner {border:0; padding:0;} /** * Address Firefox 4+ setting ' line-height ' on ' input ' using '!important ' in * the UA stylesheet. */input {line-height:normal;} /** * It's recommended that's you don ' t attempt to style these elements. * Firefox ' s implementation doesn ' t respect box-sizing, padding, or width. * * 1. Address box sizing set to ' Content-box ' in IE 8/9/10. * 2. Remove excess padding in IE 8/9/10. */input[type= "checkbox"],input[type= "Radio"] {box-sizing:border-box;/* 1 */padding:0;/* 2 */}/** * Fix the cursor Style for Chrome ' s increment/decrement buttons. For certain * ' font-size ' values of the ' input ', it causes the cursor style of the "the * Decrement button to change from ' DEFA Ult ' to ' text '. */input[type= "number"]::-webkit-inner-spin-button,input[type= "number"]::-webkit-outer-spin-button {Height:auto;} /** * 1. Address ' appearance ' set to ' Searchfield ' in Safari and Chrome. * 2. Address ' box-sizing ' set to ' Border-box ' in Safari and Chrome * (include '-moz ' to future-proof).  */input[type= "Search"] {-webkit-appearance:textfield;/* 1 */-moz-box-sizing:content-box; -webkit-box-sizing:content-box; /* 2 */box-sizing:content-box;} /** * Remove inner padding and search Cancel button in Safari and Chrome on OS X. * Safari (but not Chrome) clips the Canc El button when the search input has * padding (and ' TextField ' appearance). */input[type= "Search"]::-webkit-search-cancel-button,input[type= "search"]::-webkit-search-decoration {- Webkit-appearance:none;} /** * Define consistent border, margin, and padding.  */fieldset {border:1px solid #c0c0c0;  margin:0 2px; Padding:0.35em 0.625em 0.75em;} /** * 1. Correct ' Color ' isn't being inherited in IE 8/9/10/11. * 2. Remove padding so people aren ' t caught out if they zero out fieldsets. */legend {border:0;/* 1 */padding:0;/* 2 */}/** * Remove default vertical scrollbar in IE 8/9/10/11. */textarea {Overflow:auto;} /** * Don ' t inHerit the ' font-weight ' (applied by a rule above). * Note:the default cannot safely is changed in Chrome and Safari on OS x. */optgroup {font-weight:bold;} /* Tables ========================================================================== *//** * Remove most spacing Between table cells.  */table {border-collapse:collapse; border-spacing:0;} td,th {padding:0;}

The above is the code for NORMALIZE.CSS v3.0.2.

How to use Normalize.css

1. Download http://necolas.github.io/normalize.css/by direct download, or Package Manager

2. Load via CDN, I'm using Bootcdn's http://www.bootcdn.cn/normalize/

Summing up, I think a professional front-end engineers will accumulate with the experience of their own set of norms in, tools just let us use, and it is a help us understand and learn the way.

About NORMALIZE.CSS