/* 初始化 */
a,
abbr,
acronym,
address,
applet,
article,
aside,
audio,
b,
big,
blockquote,
body,
canvas,
caption,
center,
cite,
code,
dd,
del,
details,
dfn,
div,
dl,
dt,
em,
embed,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
html,
i,
iframe,
img,
ins,
kbd,
label,
legend,
li,
mark,
menu,
nav,
object,
ol,
output,
p,
pre,
q,
ruby,
s,
samp,
section,
small,
span,
strike,
strong,
sub,
summary,
sup,
table,
tbody,
td,
tfoot,
th,
thead,
time,
tr,
tt,
u,
ul,
var,
video {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
body {
	line-height: normal;
	font-family: Arial, "Microsoft Yahei", Helvetica, sans-serif;
	font-size: 13px;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}
img {
	display: block;
	border: none;
}
menu,
ol,
ul,
li,
dl {
	list-style: none;
}
button,
input,
select,
textarea {
	box-sizing: border-box;
	outline: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
	font-weight: normal;
	font-size: 100%;
}
a,
a:link,
a:visited,
a:hover,
a:active {
	text-decoration: none;
}

/* 浮动方式 */
.fl {
	float: left;
}
.fr {
	float: right;
}
.clear {
	overflow: hidden;
	clear: both;
	height: 0;
	font-size: 0;
}
.clearfix:after {
	display: block;
	visibility: hidden;
	clear: both;
	height: 0;
	font-size: 0;
	content: "";
}

/* 定位方式 */
.pr {
	position: relative;
}
.pa {
	position: absolute;
}
.pf {
	position: fixed;
}
.center {
	margin: 0 auto;
}

/* 对齐方式 */
.tal {
	text-align: left;
}
.tac {
	text-align: center;
}
.tar {
	text-align: right;
}
.taj {
	text-align: justify;
}

/* 弹性布局 */
.flex-row {
	display: flex;
	flex-flow: row wrap;
}
.flex-col {
	display: flex;
	flex-flow: column wrap;
}
.flex-ct {
	display: flex;
	justify-content: center;
	align-items: center;
}
.flex-fs {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-content: space-between;
}

/* 居中定位 */
.abs-ct {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
}
.abs-cx {
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
}
.abs-cy {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
}

/* 动画模式 */
.tran-fast {
	transition: all 300ms;
}
.tran-medi {
	transition: all 500ms;
}
.tran-slow {
	transition: all 800ms;
}
.td-camera {
	perspective: 1000;
}
.td-space {
	transform-style: preserve-3d;
}
.td-box {
	backface-visibility: hidden;
}
.gpu-speed {
	transform: translate3d(0, 0, 0);
}

/* 其他 */
.fullscreen {
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
}
.ellipsis {
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}
.page-at {
	overflow: auto;
	width: 100%;
	height: 100%;
}
.page-fs {
	overflow: hidden;
	width: 100%;
	height: 100%;
}
.round {
	border-radius: 100%;
}