The last person to touch a property is right, until tomorrow.

The rules accumulate. The cascade decides who won.

* {
  box-sizing: border-box;
}

Some things that have been true here

One Line of CSS

Rules of the house

Canvas
The part everybody can change.
Controls
The part nobody can.
And the smallest one there is
A link that goes nowhere in particular body { --mood: unclear; } Emphasis, pending redefinition.
DayVerdict
TodayUndecided

This paragraph was added on a day nobody remembers.

A section

Containing very little.

Undo is not available. Replay is.

Every visitor may add a single declaration. Nobody may add two.

CSS Ctrl + Z
  1. Read the page.
  2. Find the one thing that bothers you.
  3. Change exactly that.
And another
An element with no image, waiting to be given one.

A heading of diminishing importance

Highlighted for reasons lost to history

The document grows by one element every day, whether or not anybody is watching.

Specificity is just an argument that somebody already had.

Somebody will eventually set this to display: none.