Flexbox

Hey.

The issue is you're handling the containers' widths in a weird way. For you to fix that (however you might need to do some other tweaks after, this is no definite solution), you need to:

• Remove the max-width: 60%; from the main tag, which is in a media query.
• Remove the width: 100% from the section class="introduction" tag, which is also in a media query
• And finally, remove the display: block; and width: 100%; from the div class="container", which is also in a media query.

Bear in mind it is good practice to start mobile first, that way this issues wouldn't have happened cz it is harder to change from desktop to mobile sometimes. This is not a definitive solution either, some other issue might appear after you do this fix I wrote above, tho I couldn't find any from quickly looking