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CodePrimer

Search a living directory of web syntax. Pick a problem, copy a working sample, then adapt it.

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Tags basics 48 php 45 javascript 24 html 23 css 18 dom 18 forms 16 database 14 layout 8 sql 7 events 6 arrays 6 pdo 6 http 5 control-flow 5 a11y 5 security 4 responsive 3 components 3 media 3 flexbox 3 functions 2 auth 2 selectors 2

5 snippets

HTML Beginner

Image with alt text

How do I insert an image accessibly?

Media html media a11y
CSS Beginner

Hover and focus-visible

How do I style hover and keyboard focus?

Selectors a11y css selectors
HTML Beginner

Semantic navigation bar

How do I mark up a site nav?

Layout html a11y layout
HTML Beginner

Explicit label for= binding

How do I connect a label to an input?

Forms html a11y forms
HTML Beginner

Figure with caption

How do I caption an image semantically?

Media html media a11y

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