reset 文件

负责生成一份重置样式,在normalize.css的基础上,根据目前我们大家的使用习惯进行了一些归零行动,设置所有元素的box-sizingborder-box,外加一个clearfix。

html {
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  height: 100%;
}
body {
  margin: 0;
  font-size: 14px;
  font-family: "Helvetica Neue", Helvetica, STHeiTi, Arial, sans-serif;
  line-height: 1.5;
  color: #333;
  background-color: #fff;
  min-height: 100%;
}
article, aside, details, figcaption, figure, footer, header, hgroup, main, menu, nav, section, summary {
  display: block;
}
audio, canvas, progress, video {
  display: inline-block;
}
audio:not([controls]) {
  display: none;
  height: 0;
}
progress {
  vertical-align: baseline;
}
[hidden], template {
  display: none;
}
a {
  background: transparent;
  text-decoration: none;
  color: #08c;
}
a:active {
  outline: 0;
}
abbr[title] {
  border-bottom: 1px dotted;
}
b, strong {
  font-weight: bold;
}
dfn {
  font-style: italic;
}
mark {
  background: #ff0;
  color: #000;
}
small {
  font-size: 80%;
}
sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}
img {
  max-width: 100%;
  border: 0;
  vertical-align: middle;
}
svg:not(:root) {
  overflow: hidden;
}
pre {
  overflow: auto;
  white-space: pre;
  white-space: pre-wrap;
  word-wrap: break-word;
}
code, kbd, pre, samp {
  font-family: monospace, monospace;
  font-size: 1em;
}
button, input, optgroup, select, textarea {
  color: inherit;
  font: inherit;
  margin: 0;
  vertical-align: middle;
}
button, input, select {
  overflow: visible;
}
button, select {
  text-transform: none;
}
button, html input[type="button"], input[type="reset"], input[type="submit"] {
  -webkit-appearance: button;
  cursor: pointer;
}
[disabled] {
  cursor: default;
}
button::-moz-focus-inner, input::-moz-focus-inner {
  border: 0;
  padding: 0;
}
input {
  line-height: normal;
}
input[type="checkbox"], input[type="radio"] {
  box-sizing: border-box;
  padding: 0;
}
input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button {
  height: auto;
}
input[type="search"] {
  -webkit-appearance: textfield;
  box-sizing: border-box;
}
input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}
fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}
legend {
  border: 0;
  padding: 0;
}
textarea {
  overflow: auto;
  resize: vertical;
  vertical-align: top;
}
optgroup {
  font-weight: bold;
}
input, select, textarea {
  outline: 0;
}
textarea, input {
  -webkit-user-modify: read-write-plaintext-only;
}
input::-ms-clear, input::-ms-reveal {
  display: none;
}
input::-moz-placeholder, textarea::-moz-placeholder {
  color: #999;
}
input:-ms-input-placeholder, textarea:-ms-input-placeholder {
  color: #999;
}
input::-webkit-input-placeholder, textarea::-webkit-input-placeholder {
  color: #999;
}
.placeholder {
  color: #999;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
td, th {
  padding: 0;
}
h1, h2, h3, h4, h5, h6, p, figure, form, blockquote {
  margin: 0;
}
ul, ol, li, dl, dd {
  margin: 0;
  padding: 0;
}
ul, ol {
  list-style: none outside none;
}
h1, h2, h3 {
  line-height: 2;
  font-weight: normal;
}
h1 {
  font-size: 18px;
}
h2 {
  font-size: 16px;
}
h3 {
  font-size: 14px;
}
i {
  font-style: normal;
}
* {
  box-sizing: border-box;
}
.clearfix::before, .clearfix::after {
  content: "";
  display: table;
}
.clearfix::after {
  clear: both;
}