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Can we use html4 and html5 at the same time?

a .html file that contain html4 and html5 tag

7th Oct 2017, 3:57 AM
Reza F
Reza F - avatar
3 Answers
+ 2
Since most browser keeps HTML standard backwards compatibility I guess you can mix them together, however if you want to validate your file with HTML5 standard you may get some notes, about the mixture of HTML 4 & 5.
7th Oct 2017, 5:48 AM
Ipang
+ 1
help me python coding please 2 question more at my home thank you for your help
10th Oct 2017, 7:36 PM
D' Ravelens
D' Ravelens - avatar