How to put black borders in the divisions??

Question

https://code.sololearn.com/WHSVqhw98Vni/?ref=app
What all can I do to make it better??

Answer 1

It should be either this way
body div{
border:3px solid black;
}
Or this way
body{
}
div{
border:3px solid black;
}

Answer 2

Yes
this is also css you have used in your code
style = "color:blue;background:lightgreen
but this is inline css
place that div tag outside body

Answer 3

Abhay Thank you so much!!!!!!

Answer 4

div{
border:3px solid black;
}
Does this helps?

Answer 5

Is this css??

Answer 6

No its not doing anything... Do I have to change anything in my html code to make this work