Element[att]
选择具有att属性的E元素
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> input[name]{ border:1px solid red; } </style> </head> <body> <div> <span>用户名:</span> <input name="userName" value="userName"/><br /> <span> 密码:</span> <input value="userPwd"/> </div> </body> </html>
Element[att="val"]
选择具有att属性且属性值等于val的E元素
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> input[name="userName"]{ border:1px solid red; } input[name="userPwd"]{ border:1px solid #0000FF; } </style> </head> <body> <div> <span>用户名:</span> <input name="userName" value="userName"/><br /> <span> 密码:</span> <input name="userPwd" value="userPwd"/> </div> </body> </html>