I am kind of new to website development. I am curious to know whether it is possible to display someone's website inside my website like displaying w3schools.com inside a stackoverflow.com in a smaller block as a part of the website.
You can use iframe.
An inline frame is used to embed another document within the current HTML document.
<iframe src="http://www.w3schools.com"></iframe>
An IFrame would be the simplest way to do this.
<iframe src="http://www.w3schools.com">
</iframe>
you can try this
<iframe src="http://www.w3schools.com">
</iframe>
its should be work
<iframe src ="http://www.w3schools.com" width="500px" height="300px">