I am attempting to construct a roll-over pop-up box via HTML and CSS. The box is rectagular with an arrow sticking off the left side of it. It needs to scale height based on how much content is in it, ...

Create an HTML section for your navigation bar. In the HTML file for the page you are working with, locate the section you wish to add the navigation bar to. Use a element to contain it as follows: ...

Google's John Mueller said this morning in a webmaster hangout at the 20:55 mark that Google Image search does not index and rank images from CSS background code. He said if you want your images to ...