选项框居中
<!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>复选框居中</title> </head> <style type="text/css"> .box{ width:100px; height:50px; background:yellow;} .checkbox{ vertical-align:middle; margin:auto;height:50px; padding:0;} </style> <body> <div class="box"> <input type="checkbox" class="checkbox" /> </div> </body> </html>