源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Wfuyu教程(wfuyu.com)</title> <style> h2.pos_top { position:relative; top:-50px; } </style> </head> <body> <h2>This is a heading with no position</h2> <h2 class="pos_top">This heading is moved upwards according to its normal position</h2> <p><b>注意:</b> 即使相对定位元素的内容是移动,预留空间的元素仍保存在正常流动。</p> </body> </html>
运行结果：