* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

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

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

    a:hover {
        text-decoration: none;
    }

fieldset, img {
    border: 0;
}

img {
    vertical-align: middle;
}

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

ol, ul {
    list-style: none;
}

caption, th {
    text-align: left;
}

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

abbr, acronym {
    border: 0;
}
/*通用父子盒子嵌套浮动问题解决，开始*/
.clear {
    margin: 0px auto;
    width: 100%;
    height: 1px;
    font-size: 1px;
    clear: both;
    background: none;
    overflow: hidden;
}

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

.clearfix {
    display: inline-block;
}

* html .clearfix {
    height: 1%;
}

.clearfix {
    display: block;
}
/*通用父子盒子嵌套浮动问题解决，结束*/