* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	outline: none;
}

::-webkit-scrollbar {
	/*滚动条整体样式*/
	width: 4px;
	/*高宽分别对应横竖滚动条的尺寸*/
	height: 4px;
	scrollbar-arrow-color: red;
}

::-webkit-scrollbar-thumb {
	/*滚动条里面小方块*/
	border-radius: 5px;
	-webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
	background: rgba(0, 0, 0, 0.2);
	scrollbar-arrow-color: red;
}

::-webkit-scrollbar-track {
	/*滚动条里面轨道*/
	-webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
	border-radius: 0;
	background: rgba(0, 0, 0, 0.1);
}

/* 清除内外边距 */
body,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
p,
blockquote,
/* structural elements 结构元素 */
dl,
dt,
dd,
ul,
ol,
li,
/* list elements 列表元素 */
pre,
/* text formatting elements 文本格式元素 */
fieldset,
lengend,
button,
input,
textarea,
/* form elements 表单元素 */
th,
td {
	/* table elements 表格元素 */
	margin: 0;
	padding: 0;
}

/* 设置默认字体 */
button,
input,
select,
textarea {
	font-family: 'Arial,Tahoma, Helvetica,sans-serif';
}

address,
cite,
dfn,
em,
var {
	font-style: normal;
}

/* 将斜体扶正 */
code,
kbd,
pre,
samp,
tt {}

/* 统一等宽字体 */
small {
	font-size: 12px;
}

/* 小于 12px 的中文很难阅读，让 small 正常化 */
/* 重置列表元素 */
ul,
ol {
	list-style: none;
}

/* 重置文本格式元素 */
a {
	text-decoration: none;
}

a,
button,
input {
	-webkit-tap-highlight-color: rgba(255, 0, 0, 0);
}

a:hover {
	text-decoration: none;
}

abbr[title],
acronym[title] {
	/* 注：1.ie6 不支持 abbr; 2.这里用了属性选择符，ie6 下无效果 */
	border-bottom: 1px dotted;
	cursor: help;
}

q:before,
q:after {
	content: '';
}

/* 重置表单元素 */
legend {
	color: #000000;
}

/* for ie6 */
fieldset,
img {
	border: none;
}

/* img 搭车：让链接里的 img 无边框 */
/* 注：optgroup 无法扶正 */
button,
input,
select,
textarea {
	font-size: 100%;
	/* 使得表单元素在 ie 下能继承字体大小 */
}

/* 重置表格元素 */
table {
	border-collapse: collapse;
	border-spacing: 0;
}

/* 重置 hr */
hr {
	border: none;
	height: 1px;
}

html {
	margin: 0;
	padding: 0;
	font-size: 12px;
}

html,
body {
	-webkit-text-size-adjust: none;
	-moz-text-size-adjust: none;
	-ms-text-size-adjust: none;
	-o-text-size-adjust: none;
	text-size-adjust: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-weight: normal;
}

input,
textarea,
select,
button,
area {
	appearance: button;
	-moz-appearance: button;
	-webkit-appearance: button;
	outline: none;
}

ul,
li,
dl,
dd,
dt {
	list-style: none;
}

a {
	text-decoration: none;
	color: #000000;
	-webkit-transition: all ease-in .2s;
	-ms-transition: all ease-in .2s;
	-moz-transition: all ease-in .2s;
	-o-transition: all ease-in .2s;
	transition: all ease-in .2s;
}

img {
	border: 0;
	display: block;
	font-size: 0;
}

body {
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	background: #fff;
	color: #000000;
}

.clearfix {
	*zoom: 1;
}

.clearfix:before,
.clearfix:after {
	content: "";
	display: table;
}

.clearfix:after {
	clear: both;
	overflow: hidden;
}


.font-bold {
	font-weight: bold;
}

.font-center {
	text-align: center;
}

.font-normal {
	font-style: normal;
}

.font-uppercase {
	text-transform: uppercase;
}

.font_white {
	color: #fff;
}

.flex {
	display: flex;
	flex-wrap: wrap;
}