Don't know, how to make borders.

Question

The info's inside.
https://code.sololearn.com/WoGaDz1TG91D/#html

Answer 1

//Give border 2px to header and the margin between <a> are fine, 🤔🤔

border:2px solid #fff;

Answer 2

Shudarshan Rai 👑 seems like make it. But in SoloLearn in shows a bit...another. Not like it should. 😅
But anyway thank you. :)