1.清除元素的浮动属性
p:元素A有float属性,其它元素会受其影响
s:在其父元素添加clearfix属性,它的CSS样式为:
.clearfix:after {
content: " "; /* Older browser do not support empty content */
visibility: hidden;
display: block;
height: 0;
clear: both;
}
2.纯css实现下拉图标
border-top: 4px solid;
border-right: 4px solid transpant;
border-left: 4px solid transpant;
3.换行
强制不换行: div { white-space: no-wrap; }
自动换行: div { word-wrap: break-word; word-break: normal; }
强制英文单词断行: div { word-break: break-all; }