<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> </head> <body> 自动转换为大写 <div style="text-transform:uppercase"> AbCdEfG </div> <br /> <br /> <br /> 自动转换为小写 <div style="text-transform:lowercase"> AbCdEfG </div> </body> </html>
实现效果