Including a navigation bar on ... blog by adding HTML code to its theme. Tumblr themes are designed in such a way that you can easily add custom code to the header of your blog using the ...

Header code here Navigation bar code here Load the style sheet containing your CSS code. If you do not use separate style sheets, the CSS will be located between the tags at the top of your HTML ...

This menu appears directly under the masthead on new full-width pages using a special editable page region and a component. You can insert up to five (5) links and choose from over 30 icons, and no ...

Learn how to make the most of Observable JavaScript and the Observable Plot library, including a step-by-step guide to eight basic data visualization ... bar. Figure 1. An Observable default table ...