Fix invalid use of rgba() with hex color codes

Summary

This pull request replaces the incorrect usage of rgba(#ffffff, 0) with the proper transparent keyword.

Details

The original code used the following CSS:

color: rgba(#ffffff, 0);
background-color: rgba(#ffffff, 0);

This syntax is invalid in standard CSS. While some CSS preprocessors like Sass may allow similar shorthand forms, using rgba() with a hex code as the first argument is not supported in standard CSS and may cause parsing issues or errors in certain environments.

Fix:

color: transparent;
background-color: transparent;

The keyword transparent is equivalent to rgba(0, 0, 0, 0) and is the most readable and widely compatible way to apply full transparency.

Benefits

• Improves compatibility with standard CSS parsers
• Avoids potential errors or misinterpretations in CSS tools
• Enhances readability and maintainability of the code

Thank you for your work on this project!