摘要：
/*清空浮动 此类放在包含浮动的div里面*/.clearfloat:after { display:block; clear:both; content:''; visibility:hidden; height:0; }.clearfloat { zoom:1; }/* 清除内外边距 */body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, /* structural elements 结构元素 */dl, dt, dd, ul, ol, li, /* list elements 列表元素 */pre, /* text forma 阅读全文
