HTML+CSS入门 normalize.css对CSS初始化-职坐标

HTML+CSS入门 normalize.css对CSS初始化

沉沙 2018-10-19 来源：阅读 1145 评论 0

摘要：本篇教程介绍了HTML+CSS入门 normalize.css对CSS初始化，希望阅读本篇文章以后大家有所收获，帮助大家HTML+CSS入门。

本篇教程介绍了HTML+CSS入门 normalize.css对CSS初始化，希望阅读本篇文章以后大家有所收获，帮助大家HTML+CSS入门。<

/*! normalize.css v7.0.0 | 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
*    IE on Windows Phone and in iOS.
*/
html {
  line-height: 1.15;
  /* 1 */
  -ms-text-size-adjust: 100%;
  /* 2 */
  -webkit-text-size-adjust: 100%
  /* 2 */
}

/* Sections
   ========================================================================== */
/**
* Remove the margin in all browsers (opinionated).
*/
body {
  margin: 0;
}

/**
* Add the correct display in IE 9-.
*/
article,
aside,
footer,
header,
nav,
section {
  display: block;
}

/**
* 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
   ========================================================================== */
/**
* Add the correct display in IE 9-.
* 1. Add the correct display in IE.
*/
figcaption,
figure,
main {
  /* 1 */
  display: block;
}

/**
* Add the correct margin in IE 8.
*/
figure {
  margin: 1em 40px;
}

/**
* 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
   ========================================================================== */
/**
* 1. Remove the gray background on active links in IE 10.
* 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
*/
a {
  background-color: transparent;
  /* 1 */
  -webkit-text-decoration-skip: objects
  /* 2 */
}

/**
* 1. Remove the bottom border in Chrome 57- and Firefox 39-.
* 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 */
}

/**
* Prevent the duplicate application of `bolder` by the next rule in Safari 6.
*/
b,
strong {
  font-weight: inherit;
}

/**
* 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 style in Android 4.3-.
*/
dfn {
  font-style: italic;
}

/**
* Add the correct background and color in IE 9-.
*/
mark {
  background-color: #ff0;
  color: #000;
}

/**
* 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
   ========================================================================== */
/**
* Add the correct display in IE 9-.
*/
audio,
video {
  display: inline-block;
}

/**
* Add the correct display in iOS 4-7.
*/
audio:not([controls]) {
  display: none;
  height: 0;
}

/**
* Remove the border on images inside links in IE 10-.
*/
img {
  border-style: none;
}

/**
* Hide the overflow in IE.
*/
svg:not(:root) {
  overflow: hidden;
}

/* Forms
   ========================================================================== */
/**
* 1. Change the font styles in all browsers (opinionated).
* 2. Remove the margin in Firefox and Safari.
*/
button,
input,
optgroup,
select,
textarea {
  font-family: sans-serif;
  /* 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;
}

/**
* 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
*    controls in Android 4.
* 2. Correct the inability to style clickable types in iOS and Safari.
*/
button,
html [type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button
  /* 2 */
}

/**
* 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 */
}

/**
* 1. Add the correct display in IE 9-.
* 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
*/
progress {
  display: inline-block;
  /* 1 */
  vertical-align: baseline
  /* 2 */
}

/**
* Remove the default vertical scrollbar in IE.
*/
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 and cancel buttons in Chrome and Safari on macOS.
*/
[type="search"]::-webkit-search-cancel-button,
[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 IE 9-.
* 1. Add the correct display in Edge, IE, and Firefox.
*/
details,
menu {
  display: block;
}

/*
* Add the correct display in all browsers.
*/
summary {
  display: list-item;
}

/* Scripting
   ========================================================================== */
/**
* Add the correct display in IE 9-.
*/
canvas {
  display: inline-block;
}

/**
* Add the correct display in IE.
*/
template {
  display: none;
}

/* Hidden
   ========================================================================== */
/**
* Add the correct display in IE 10-.
*/
[hidden] {
  display: none;
}