How to take screenshot of the particular area on webpage

Hello, community

I want to take a screenshot of the middle area of two pages. PgDn is not holding the required area.

Webpage :
page scroll is at the top of the page

If I do page down, I show the below webpage

But I want to take a screenshot of the following area on the webpage

Kindly assist me to get the output.

Best Regards,
Vrushali

for this , I need to explain live through zoom call.
ping me on sg2070156@gmail.com