Adjacent sibling selectors
Adjacent sibling selectors will select the sibling immediately following an element.
For example, you may wish to target an <h3> element,
Buy Office 2007, but only <h3> elements that immediately follow an <h2> element. This is a commonly used example,
Microsoft Office Professional 2010, as it has a real-world application. There is often too much space between <h2> and <h3> elements when they appear immediately after each other. The code would be:
<body>
<h2>Heading 2 <em>text</em></h2>
<h3>Heading 3 text</h3>
<p>This is <em>text</em> and more <strong>text</strong></p>
</body>
The document tree would be:
Using the following rule,
Genuine Office 2010, you can target any <h3> that follows an <h2>:
h2 + h3 {margin: -1em; }
Adjacent sibling selectors also work for inline elements such as <em> and <strong>
Using the following rule, you can target <strong> text that follows <em> text:
em + strong {color: blue; }
Adjacent sibling selectors are not supported by Windows Internet Explorer 5,
Office 2007 Ultimate Key, 5.5 and 6,
microsoft Office 2010 keygen, but are supported by most other standards-compliant browsers.
Further information W3C CSS2 Specification: Adjacent sibling selectors DevEdge CSS2 Selectors Support Chart WestCiv Selectors Support Chart
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