Custom CSS
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The custom.css file allows you to customize the appearance of Mainsail without the need of rebuilding it. Place a file named custom.css in the .theme folder of your Mainsail installation and define your custom Cascading Style Sheets (CSS) rules inside the file.
You need to be familiar with the CSS syntax to customize Mainsail. There are many resources available to learn CSS online, for example: W3Schools - CSS tutorial
You will need to use your browser’s built in developer tools to find the element you want to customize. You can do this by clicking the “Developer Tools” button in the browser’s toolbar or by right clicking on the page and choosing Inspect Element or press F12.
Activate the developer tools and inspector
Select the desired element
Find the selector
Use the style editor to customize the element. Play around to find the style you like!
When you have achieved your desired appearance, copy the full “section”, including the selector and curly braces.
Next copy it inside the “custom.css” file (you can keep everything or only what you have added)
