html {
    color: #000;
    background: #fff;
}

*,
:before,
:after {
    padding: 0;
    margin: 0;
    background-repeat: no-repeat; 
    box-sizing: border-box;
}


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

fieldset, img {
    border: 0
}

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

ol, ul {
    list-style: none
}

caption, th {
    text-align: left
}

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

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

abbr, acronym {
    border: 0;
    font-variant: normal
}

sup {
    vertical-align: text-top
}

sub {
    vertical-align: text-bottom
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    *font-size: 100%
}

button, [type="button"], [type="reset"], [type="submit"], [role="button"] {
    cursor: pointer;
}

legend {
    color: #000
}

iframe {
    display: block;
}

body {
    font: 14px "microsoft yahei", arial, helvetica, clean, sans-serif;
    color: #333;
}

select, input, button, textarea {
    font-family: inherit;
    font-size: 99%;
    line-height: inherit;
}

table {
    font-size: inherit;
    font: 100%
}

pre, code, kbd, samp, tt {
    font-family: monospace;
    *font-size: 108%;
    line-height: 100%
}

a {
    text-decoration: none;
    color: inherit;
}

::-webkit-input-placeholder {
    color: #999;
}

:-moz-placeholder {
    color: #999;
}

::-moz-placeholder {
    color: #999;
}

:-ms-input-placeholder {
    color: #999;
}

.placeholder {
    color: #999;
}

.center-block {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.clearfix {
    *zoom: 1;
}

.clearfix:before,
.clearfix:after {
    display: table;
    line-height: 0;
    content: "";
}

.clearfix:after {
    clear: both;
}

.l {
    float: left !important;
}

.r {
    float: right !important;
}

.hidden {
    display: none !important;
}

.invisible {
    visibility: hidden !important;
}