Web Dev Roadmap for Beginners (Free!): https://bit.ly/DaveGrayWebDevRoadmap

Learn about CSS custom variables and CSS Dark Mode in this CSS tutorial for beginners. CSS variables are also often referred to as CSS custom properties. We will use them to create a custom dark mode for your web page.

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This lesson is part of a CSS for Beginners tutorial series playlist:
https://www.youtube.com/playlist?list=PL0Zuz27SZ-6Mx9fd9elt80G1bPcySmWit

All Resources for this CSS Tutorial Series: https://github.com/gitdagray/css_course

Course Updates https://courses.davegray.codes/

CSS Custom Variables & Dark Mode | CSS Tutorial for Beginners

(00:00) Intro
(00:05) Welcome
(00:26) Why use CSS variables?
(01:12) Starter Code
(01:22) :root pseudo-class
(02:02) Apply colors with CSS variables
(09:18) Apply font styles with CSS variables
(11:08) Nesting CSS variables
(15:34) Adding more HTML content
(17:46) Styling the main element
(19:41) Order of operations
(20:21) Styling the content with CSS variables
(23:15) Redefining CSS variables
(24:22) Create and apply a Dark Mode

Web Dev Tools:
Chrome Browser: https://www.google.com/chrome/
Visual Studio Code (VS Code): https://code.visualstudio.com/
Live Server VS Code Extension: https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer
vscode-icons VS Code Extension: https://marketplace.visualstudio.com/items?itemName=vscode-icons-team.vscode-icons
Github Themes VS Code Extension: https://marketplace.visualstudio.com/items?itemName=GitHub.github-vscode-theme
W3C CSS Validator: https://jigsaw.w3.org/css-validator/
Specificity Calculator: https://specificity.keegan.st/
HTML Special Characters and Entities: https://unicode-table.com
CanIUse.com: https://caniuse.com/

References:
MDN CSS: https://developer.mozilla.org/en-US/docs/Web/CSS
MDN CSS Basics: https://developer.mozilla.org/en-US/docs/Learn/Getting_started_with_the_web/CSS_basics
MDN CSS Selectors: https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Selectors
MDN - How to Apply Colors to HTML Elements with CSS: https://developer.mozilla.org/en-US/docs/Web/CSS/color
MDN - CSS Values and Units: https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Values_and_units
MDN - The Box Model: https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/The_box_model
MDN - Styling Lists: https://developer.mozilla.org/en-US/docs/Learn/CSS/Styling_text/Styling_lists
MDN - Display Property: https://developer.mozilla.org/en-US/docs/Web/CSS/display
MDN - Floats: https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Floats
MDN - Columns: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Columns/Basic_Concepts_of_Multicol
MDN - Margin Collapsing: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Box_Model/Mastering_margin_collapsing
MDN - White-Space: https://developer.mozilla.org/en-US/docs/Web/CSS/white-space
MDN - Positioning: https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Positioning
MDN - Flexbox: https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Flexbox
MDN - Basic Concepts of Grid Layout: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Basic_Concepts_of_Grid_Layout
MDN - Grid Template Areas: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Grid_Template_Areas
MDN - CSS Images: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Images
MDN - CSS Background Images: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Backgrounds_and_Borders/Resizing_background_images
Chip Cullen - Article on Content Layout Shift: https://chipcullen.com/what-width-and-height-attributes-to-use-with-responsive-images/
MDN - CSS Media Queries: https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Media_queries
MDN - CSS Pseudo-Classes and Pseudo-Elements: https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements
MDN - List of CSS Pseudo-Classes: https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-classes
MDN - List of CSS Pseudo-Elements: https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements
MDN - CSS Custom Properties (Variables): https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties

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