页面初始化样式保留

body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
button,
textarea,
p,
blockquote,
th,
td {
margin: 0;
padding: 0;
}

body {
background: #fff;
color: #555;
font-size: 14px;
font-family: Verdana, Arial, Helvetica, sans-serif;
}

td,
th,
caption {
font-size: 14px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
font-weight: normal;
font-size: 100%;
}

address,
caption,
cite,
code,
dfn,
em,
strong,
th,
i,
b,
strong {
font-style: normal;
font-weight: normal;
}

a {
color: #555;
text-decoration: none;
}

a:hover {
text-decoration: underline;
}

img {
border: none;
vertical-align: middle;
}

ol,
ul,
li {
list-style: none;
}

input,
textarea,
select,
button {
font: 14px Verdana, Helvetica, Arial, sans-serif;
}

table {
border-collapse: collapse;
border-spacing: 0;
}

html {
overflow-y: scroll;
}

.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}

.clearfix {
*zoom: 1;
}