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Possible duplicate of stackoverflow.com/questions/17865148/…Elnaz– Elnaz2016-09-21 07:08:27 +00:00Commented Sep 21, 2016 at 7:08
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for similar problems: You can use required attribute in html5. It will handle the validation and required css..Elnaz– Elnaz2016-09-21 07:09:52 +00:00Commented Sep 21, 2016 at 7:09
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