Sometimes you might want to make elements transparent, so you can use them as labels elsewhere on the map. Here's how to do that!
- Click on Settings and scroll down to Decorate Elements
- Set the condition for which elements you want to make transparent (e.g. all elements, selected elements, or a custom rule)
- Select the "Change color" checkbox
- Click in the text box to pick your color and simply type "transparent"
- Click the blue "Done" button at the bottom
Use the following code, and adjust for a different selector if needed:
element {
color: transparent;
text-align: center;
}