In WeWeb, you can add global styles in CSS. Here’s how:
Go to your project Settings > File > Upload new file and uploading your CSS stylesheet
First, copy the file’s URL by clicking on the top left green icon of your CSS file once it’s been uploaded to open it in a new tab
Then, go back to your project Settings > Custom code and link to your CSS stylesheet in the head
<link rel="stylesheet" href="url-you-copied-above">
Changes you make in the custom code will NOT show in the editor. You will only be able to see the changes on the published website.