input url from form to show in iframe

good day everyone, am trying to create a web page with a form that i can enter any url in the form and it will be displayed on another page with an iframe but I seem to be having problems putting it to together. Can anyone look into the code for me and tell me what am doing wrong. am new to this:

html page code:
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Globalmindsconcepts | Virtual Web Talker
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Form:
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See What a Website Spokesperson Looks Like on your site.


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<div class="site-search-area 
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Enter your website:           Preview
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scrape-actor/demo.php : the php page from the form action:

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Website Actor Live Demo
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VIRTUALWEB TALKER | ORDER NOW >>
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am trying to create a sample form for users to enter any url to see what a spokesperson looks like on their site. am still learning though…the form is not working cause the url is not showing in the page with iframe when typed in the form.