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CSS — The Later Rule Wins

The real reason you end up reaching for !important

중급 · Lessons 13 · Lab 3

Curriculum

The Cascade and Layout

Higher Specificity, and Still Losing

Start Using Layers and the Sort Grows a Step reading
Winning With Layers lab
Cascade Layers Check quiz

Off-Center, and the Margin Vanished

Why 300px Is Not 300px reading
Box Model and Margins Check quiz

I Wrote sticky and It Does Not Stick

The Cause Is Always an Ancestor reading
Finding the Reason in the Ancestors lab
Containing Block and Positioning Check quiz

It Is the Box Width, Not the Screen Width

A Card Does Not Know Where It Was Placed reading
Layout Choice and Responsive Check quiz

Reference docs