/* These select for any h2, h3, h4 and h5 within .info-specs */ .info-specs h2, .info-specs h3, .info-specs h4, .info-specs h5 { text-decoration: underline; } /* These select for ant h2, h3, h4 and h5 that are direct chldren of .info-specs */ .info-specs > h2, .info-specs > h3, .info-specs > h4, .info-specs > h5 { color: red; }
In this example the headings within inf-specs will all be underlined but only the headings that are direct children of info-specs will be coloured red.
浏览器的 CSS 解释器将查找任何
h3
、h4
和h5
元素,并且仅查找h2 它将查看它是否在
.info-specs
内。逗号或分组选择器将逗号分隔的所有内容视为单独的选择。您的问题的可能解决方案是: