How do I make a drop down menu go over content?
First, create a div and add the class dropdown to it. In CSS, set this div's display to inline-block and position to relative. This will allow the dropdown content to appear right below the dropdown button.
How do I make a drop down list scrollable in HTML?
Use any element to open the dropdown menu, e.g. a <button>, <a> or <p> element. Use a container element (like <div>) to create the dropdown menu and add the dropdown links inside it. Wrap a <div> element around the button and the <div> to position the dropdown menu correctly with CSS.