点点滴滴

摘要： What is “Float”?Float is a CSS positioning property. To understand its purpose and origin, we can look to print design. In a print layout, images may be set into the page such that text wr... 阅读全文

摘要： 1.关于元素的 width属性无效果先运行下程序看下:<span style='background-color:#336699;width:300px;'>123</span> 可以看到 span会自动根据包含的内容来变化宽度这是因为:对于内联元素(可以是默认即为内联的比如 span 元素，也可以是 display: inline 的元素)width 和 height 只... 阅读全文