[1.1基础选择器](%E5%9F%BA%E7%A1%80%E9%80%89%E6%8B%A9%E5%99%A8.md) [1.2复合选择器](%EF%BC%93.2%E5%A4%8D%E5%90%88%E9%80%89%E6%8B%A9%E5%99%A8.md) [标签选择器](%E6%A0%87%E7%AD%BE%E9%80%89%E6%8B%A9%E5%99%A8.md)