Friend i make color change Button it's working but i want to draw color full line so how can do it.

Question

Tell me as well as possible with the code
https://code.sololearn.com/WgbojWJ73y8e/?ref=app

Answer 1

What does "draw color full line mean?"

Answer 2

To draw a horizontal line with red color
<hr style="border-color: red" />