Good, clean code is always a great idea. Here are some hot tips on optimizing your CSS. ⭐️Files you need ⭐️ 💻Sliding Panels Code: https://www.dropbox.com/sh/abppywwt9imwtz6/AAAa0nW3NbO8GFDf7ezKqvCha?dl=0 💻All tutorials in this series need this "_theme-styles" directory (only download once): https://www.dropbox.com/sh/890hx6ke34oovaz/AAByJ-jb-H5pWuIUx7t_GvQqa?dl=0 This video works as a stand-alone tutorial but is also day 28 of CSS3 in 30 Days. For the rest of the series, check out this playlist:    • CSS3 in 30 Days   CSS3 in 30 Days is developed by Brad Hussey. Check out his website for more great tutorials: https://codecollege.ca/ -- Learn to code for free and get a developer job: https://www.freecodecamp.org/ Read hundreds of articles on programming: https://medium.freecodecamp.org/