See the Pen Zoom iMage with scale by Omar Dsooky on CodePen. The initial-scale=1.0 part sets the initial zoom level when the page is first loaded by the ... content should not rely on a particular viewport width to render well. Active 5 years, 1 month ago. How to Scale Images and Background Images on Hover. There are plenty of situations where we might want to change the font-size property of an element as the screen width changes. Home / Code Snippets / CSS / Scale on Hover with Transition Scale on Hover with Transition . Let's consider a large image, a 2982x2808 Firefox logo image.