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CSS

Posted by Tiffany McAllister
Tiffany McAllister
25,806 Points

Navbar changing height when adding a border on hover

I'm working on a project using Bootstrap and want the links in my navbar to have a top border when hovering over them, however, when I do hover over them, it increases the navbar height as seen in the codepen http://codepen.io/tiffmc/pen/LVMxqG

Isn't this what box-sizing: border-box is for?

1 Answer

Justin Iezzi
Justin Iezzi
18,199 Points

I believe border-box has an issue calculating the size differences when a size value hasn't been specified.

Try adding a height property to your nav li -

.nav li {
    box-sizing: border-box;
    height: 50px;
    border-left: 1px solid #555;
}

If you don't want your content inside each li to be pushed down by the border, I might suggest adding an existing border of the same color, so that the position stays the same.