Master CSS headers with this complete guide. Styling, hierarchy, and branding tips for better websites. Updated for 2025.

Open your Web page in your HTML editor program and navigate to the spot in your page where you would like to add the print link. Copy and paste the following HTML/CSS code into the page.

One way to add a background photo to any custom Tumblr theme is to embed a simple CSS tag at the right location in the theme's HTML code.