I am very new to css so this maybe a simple answer. I have 2 scenarios and 1 works the other doesn\'t. I hope someone can help me out.
WORKS:
In my case:
I had a CSS folder. So, inside my CSS folder I had my style.css so I was typing inside my style.css the following:
style.css
background: url('img/mybgimg.jpg')
instead of
background: url('../img/mybgimg.jpg')
...I hope this can help to anyone who is having the same issue.