Pseudo elements are useful for changing the background colour of the checkbox and radio buttons. We can use :before and :after to change the colour or appearance of the checkboxes. It can all work ...

It is nice to build things with Pure CSS and Vanilla JavaScript to better appreciate functionalities provided by frameworks, libraries and preprocessors such as ReactJS, Angular, Vue.js, Bootstrap, ...

If you're hoping to change the background color of a cell in a table within Google Docs, here's how to create one first: From the navigation menu, select Insert. Go to Table.