W3School TIY Editor
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<!DOCTYPE html> <html> <head> <style> input[type=text] { width: 150px; display: block; margin-bottom: 10px; background-color: yellow; } input[type=button] { width: 120px; margin-left: 35px; display: block; } </style> </head> <body> <h1>添加表单样式</h1> <form name="input" action="" method="get"> Firstname:<input type="text" name="Name" value="Bill" size="20"> Lastname:<input type="text" name="Name" value="Gates" size="20"> <input type="button" value="Example Button"> </form> </body> </html>