Html
Css
Demo
运行代码
<!DOCTYPE html> <html> <body> <form action="/demo/demo_form.asp"> <fieldset> <legend>Personal information:</legend> First name:<br> <input type="text" name="firstname" value="Mickey"> <br> Last name:<br> <input type="text" name="lastname" value="Mouse"> <br><br> <input type="submit" value="Submit"> </fieldset> </form> </body> </html>