/* 清除所有元素的边距和内边距 */

* {

    margin: 0;

    padding: 0;

    box-sizing: border-box;

}



/* 清除所有元素的默认样式 */

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td {

    margin: 0;

    padding: 0;

    border: 0;

    outline: 0;

    font-size: 100%;

    vertical-align: baseline;

    background: transparent;

}



/* 清除链接默认样式 */

a {

    text-decoration: none;

    color: inherit;

}



/* 清除列表默认样式 */

ul, ol {

    list-style: none;

}



/* 清除图片默认边框 */

img {

    border: none;

}



/* 清除表格默认边框 */

table {

    border-collapse: collapse;

    border-spacing: 0;

}

html {
    line-height: normal;

}