Use CSS Shorthand

Using shorthand CSS declarations will lead to quicker coding and debugging. It might also save some errors from mistyping multiple declarations.

When a rule has multiple similiar declarations for a single selector, such as

padding-top: 10px;
padding-right: 20px;
padding-bottom: 30px;
padding-left: 40px;

they can be combined into one line, such as

padding: 10px 20px 30px 40px;

The trick to remember which position controls which direction is TRouBLe: Top, Right, Bottom, Left.

The main declarations that use shorthand for are bordermarginpadding andbackground.

Bonus: Hex Shortcut

Six hexidecimal digits used for CSS colors can be condensed down to three if they are grouped in identical pairs.

For example, #000000 can be written #000, or #990055 can be written #905, but #F091A4cannot be shortened since the pairs aren’t identical.

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