solution using flexbox

Hey, it's a good start but there's a few things you could do!

1. Your solution doesn't seem to be responsive. Perhaps if you set the container's width to max-width instead, that would help.

2. Your need to set a font-family for the button, otherwise it will use the browser's default. Adding a cursor: pointer would be a nice touch too!

3. There's an overflow on your body that comes from setting fixed heights. There's usually no need to set heights on your elements, except your body and even there, a min-height of 100vh would be the best. If you add display: grid and place-items: center that would nicely center your component.

4. 4.8rem of padding everywhere on your content is a bit of an overkill. If you get rid of the fixed height, you'll not need to have such a large padding everywhere, you'll see.