HTML5 Email Input Pattern Attribute

Question

I’m trying to make a html5 form that contains one email input, one check box input, and one submit input. I\'m trying to use the pattern attribute for the email input but I

Answer 1

^(http:\/\/www\.|https:\/\/www\.|http:\/\/|https:\/\/)[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$