前端开发问题

Affecting parent element of :focus#39;d element (pure CSS+HTML preferred)(影响 :focusd 元素的父元素(首选纯 CSS+HTML))
Attribute selector where value equals either A or B?(值等于 A 或 B 的属性选择器?)
Selecting half the elements with :nth-child?(用 :nth-child 选择一半的元素?)
XPath or querySelector?(XPath 还是 querySelector?)
Css attribute selector for input type=quot;buttonquot; not working on IE7(输入类型=“按钮的CSS属性选择器无法在 IE7 上运行)
How can I combine multiple CSS rules?(如何组合多个 CSS 规则?)
background-image: for :visited links?(背景图像:for :visited links?)
Having trouble with attribute != selector(属性有问题!=选择器)
:last-child pseudo-class mixed with attribute selector not working(:last-child 伪类与属性选择器混合不起作用)
CSS selector based on width?(基于宽度的CSS选择器?)
Assign CSS attributes according to class quot;rangequot;(根据类“范围分配 CSS 属性.)
How does CSS specificity decide which styles to apply?(CSS 特性如何决定应用哪些样式?)