在涉及到Qt 部件美工变成的时候首先要掌握CSS 级联样式表
　　级联样式表 (CSS) 包含应用于网页中的元素的样式规则。CSS 样式定义元素的显示方式以及元素在页中的放置位置。可以创建一个通用规则，只要 Web 浏览器遇到一个元素实例，或遇到一个分配给某个特定样式类的元素，该规则就立刻应用属性，而不是将属性逐个分配给页中的每个元素。
　　(When it comes to the Qt component art, you first have to master the CSS cascading style sheet
Cascading style sheets (CSS) contain style rules that apply to elements in a web page. The CSS style defines how the element is displayed and where the element is placed in the page. You can create a general rule, as long as the Web browser encounters an element instance, or meet a is assigned to a specific class of style elements, the rules immediately apply the property, rather than by attributes assigned to each element in the page.)