How to remove the side border from the iframes and show the webpages are scrolling on mouse hover as I put all webpages in one

Question

How to remove the side border from the iframes even if I put in iframe also frameborder=0 but it is not working and I have put all my webpages link in the new webpage in the iframes tag and want to show all the webpages are scrolling on mouse hover as I put all webpages in new website help me

Answer 1

::-webkit-scrollbar { width: 0 }