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CSS Tutorial

CSS HOMECSS IntroductionCSS SyntaxCSS SelectorsCSS How ToCSS CommentsCSS ErrorsCSS ColorsCSS BackgroundsCSS BordersCSS MarginsCSS PaddingCSS Height/WidthCSS Box ModelCSS OutlineCSS TextCSS FontsCSS IconsCSS LinksCSS ListsCSS TablesCSS DisplayCSS Max-widthCSS PositionCSS Z-indexCSS OverflowCSS FloatCSS Inline-blockCSS AlignCSS CombinatorsCSS Pseudo-classesCSS Pseudo-elementsCSS OpacityCSS Navigation BarsCSS DropdownsCSS Image GalleryCSS Image SpritesCSS Attr SelectorsCSS FormsCSS CountersCSS UnitsCSS InheritanceCSS SpecificityCSS !importantCSS Math FunctionsCSS OptimizationCSS AccessibilityCSS Website Layout

CSS Advanced

CSS Rounded CornersCSS Border ImagesCSS BackgroundsCSS ColorsCSS Color KeywordsCSS GradientsCSS ShadowsCSS Text EffectsCSS Custom FontsCSS 2D TransformsCSS 3D TransformsCSS TransitionsCSS AnimationsCSS TooltipsCSS Image StylingCSS Image ModalCSS Image CenteringCSS Image FiltersCSS Image ShapesCSS object-fitCSS object-positionCSS MaskingCSS ButtonsCSS PaginationCSS Multiple ColumnsCSS User InterfaceCSS VariablesCSS @propertyCSS Box SizingCSS Media QueriesCSS MQ Examples

CSS Flexbox

Flexbox IntroFlex ContainerFlex ItemsFlex Responsive

CSS Grid

Grid IntroGrid ContainerGrid ItemsGrid 12-column LayoutCSS @supports

CSS Responsive

RWD IntroRWD ViewportRWD Grid ViewRWD Media QueriesRWD ImagesRWD VideosRWD FrameworksRWD Templates

CSS SASS

SASS Tutorial

CSS Examples

CSS TemplatesCSS ExamplesCSS EditorCSS SnippetsCSS QuizCSS ExercisesCSS WebsiteCSS SyllabusCSS Study PlanCSS Interview PrepCSS BootcampCSS Certificate

CSS References

CSS ReferenceCSS SelectorsCSS CombinatorsCSS Pseudo-classesCSS Pseudo-elementsCSS At-rulesCSS FunctionsCSS Reference AuralCSS Web Safe FontsCSS AnimatableCSS UnitsCSS PX-EM ConverterCSS ColorsCSS Color ValuesCSS Default ValuesCSS Browser Support

W3SchoolsCSS Certificate


w3schoolsCERTIFIED.2025  

W3Schools offers an Online Certification Program.

The perfect solution for busy professionals who need to balance work, family, and career building.

More than 50 000 certificates already issued!


Get Your Certificate »

w3schoolsCERTIFIED.2025

W3Schools offers an Online Certification Program.

The perfect solution for busy professionals who need to balance work, family, and career building.

More than 50 000 certificates already issued!

Get Your Certificate »

Document your skills
Improve your career
Study at your own pace
Save time and money
Known brand
Trusted by top companies

Who Should Consider Getting Certified?

Any student or professional within the digital industry.

Certifications are valuable assets to gain trust and demonstrate knowledge to your clients, current or future employers on a ever increasing competitive market.

W3Schools is Trusted by Top Companies

W3Schools has over two decades of experience with teaching coding online.

Our certificates are recognized and valued by companies looking to employ skilled developers.

Save Time and Money

Show the world your coding skills by getting a certification.

The prices is a small fraction compared to the price of traditional education.

Document and validate your competence by getting certified!

Exam overview

Fee: 95 USD

Achievable certification levels:
Intermediate (40%)
Advanced (75%)
Professional (90%)

Number of questions:
Adaptive,60 on average

Requirement to pass:
Minimum 40% - Intermediate level

Time limit: 60 minutes

Number of attempts to pass: 3

Exam deadline: None

Certification Expiration: None

Format: Online, multiple choice

Register now »


Advance Faster in Your Career

Getting a certificate proves your commitment to upgrading your skills.

The certificate can be added as credentials to your CV, Resume, LinkedIn profile, and so on.

It gives you the credibility needed for more responsibilities, larger projects, and a higher salary.

Knowledge is power, especially in the current job market.

Documentation of your skills enables you to advance your career or helps you to start a new one.


How Does It Work?

  • Study for free at W3Schools.com
  • Study at your own speed
  • Test your skills with W3Schools online quizzes
  • Apply for your certificate by paying an exam fee
  • Take your exam online, at any time, and from any location

Get Your Certificate and Share It With The World

Example certificate:

CSS Certificate

Each certificate gets a unique link that can be shared with others.

Validate your certification with the link or QR code.

Check how it looks like in thisExample.

Share your certificate on Linked in the Certifications section in just one click!


Document Your Skills

Getting a certificate proves your commitment to upgrade your skills,gives you the credibility needed for more responsibilities, larger projects, and a higher salary.

Get Your Certificate »


Looking to add multiple users?

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