@import url('./common.css');
@import url('./head.css');
@import url('./navigation.css');
@import url('./content.css');
@import url('./bottom.css');

*{
    font-size: 16px;
}

ul {
    list-style-type: none; /* 去除列表项前的圆点 */
    padding: 0; /* 去除内边距 */
    margin: 0; /* 去除外边距 */
}