CSS Builder Lab · Lesson 9 of 10

CSS Variables and Theme Basics

Use shared values for color and spacing so simple site themes stay consistent.

Academy Plus 3 practice exercises 1 homework item

What you will learn

  • Explain CSS variables as named shared values for repeated styling choices.
  • Use variables for colors, spacing, and simple theme values.
  • Describe how changing one shared value can update multiple parts of a page.
  • Reduce hard-coded repetition with clear variable names.
  • Prepare a small page theme for the CSS Builder Lab capstone.

Lesson shape

19 minute lesson with 6 sections, 3 exercises, 3 checkpoint questions, and 1 homework submission.

This track requires the Academy Plus plan.

Lesson outline

What this lesson includes

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Overview

CSS variables are shared styling values

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Explain

Why shared values help consistency

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example

Use variables for colors and spacing

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Practice

Changing one value can update many places

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Explain

Common beginner variable mistakes

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Wrap up

Prepare for the CSS capstone

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Homework

Assignments attached to this lesson

Text response

CSS Variables and Theme Basics: quick check

Write a short beginner explanation of the main idea from CSS Variables and Theme Basics.

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