Responsive 4-Card Feature Section w/ Grid

Expanded my use of custom properties. Assigned properties for colors, font weight, and font sizes. This also allowed me to redefine the font size custom properties inside of the media query. Changed the naming convention to something a little more generic so that if I wanted to completely change the color, I could do so without making things confusing

Used Flexbox on the mobile sizing and switched to Grid inside of the media query. Used the grid-row and grid-column attributes to assign placement inside of the grid

Finally begin to understand that there are 3 levels to each grid, and different properties to manipulate each one - container, items, and content