Ignore parent padding

Question

I\'m trying to get my horizontal rule to ignore the parent padding.

Here\'s a simple example of what I have:

#par         


        

Answer 1

Your parent is 120px wide - that is 100 width + 20 padding on each side so you need to make your line 120px wide. Here's the code. Next time note that padding adds up to element width.

#parent
{
    width: 100px;
    padding: 10px;
    background-color: Red;
}

hr
{
    width: 120px;
    margin:0 -10px;
    position:relative;
}