Learn about 7 common HTML mistakes you may be making that is contributing to making your website inaccessible to screen reader and keyboard users.
Learn how to use the CSS float property -which the most supported web layout property - to build a simple grid-like column layout system -just like bootstrap.
The CSS Cascade is the algorithm used by browsers to resolve the conflict of which style rule to apply to an element when there are 2 or more style rules of the same property with different values targeting that element.