In case you need to modify the theme’s CSS styles, the fastest way to determine the CSS code you need to apply is using a code inspector tool built into your web browser.
Usually you can display the code inspector (or developer tools) by right clicking the element on the website and choosing “Inspect” from the contextual menu. (Please note that this might differ from browser to browser – search the internet if the contextual menu procedure does not apply for your browser.)
Once you determine the CSS code you can apply it in several ways.
Resources:
- Video on customizing a theme CSS
- Video on Using Chrome Developer Tools
- Read/watch a quick guide provided by WPBeginner
- You can learn more on CSS at W3Schools