embed a custom html code into a html5

Programming
Tutor: None Selected Time limit: 3 Days

how can i embed a custom html code into a html5 webpage. i want a popup wherein users can send me their queries.
Nov 30th, -0001
Use HTML iFrame/Embed Application
Jul 8th, 2013

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Nov 30th, -0001
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Nov 30th, -0001
Dec 4th, 2016
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