Alvaro Montoro

10 Cool CodePen Demos – April 2026

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10 Cool CodePen Demos (March 2026)

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Drawing a picnic scene with CSS and a single div

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Optical Illusion with CSS (I)

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Houndstooth Pattern in CSS

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Drawing with CSS Cute Animal

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Creating a halloween toggle switch with HTML and CSS

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Drawing with CSS Let the Chaos Commence!!

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InktoberDivtober Drawing a Bee with CSS

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Coding a comiCSS comic with HTML

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CSS heading in action

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Live coding a comic with CSS using random()

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Background-repeat... with cookies

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Drawing with CSS Rocket ship logo

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CSS Art Drawing a mouse with CSS

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Drawing a kawaii bunny with CSS

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CSS Art Drawing an office with CSS (no HTML!)

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Drawing with CSS Dancing Turtle

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HTML Entities ...and Greek Characters

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Drawing with CSS Math Joke

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CSS Art drawing a cute kawaii cat

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Drawing a cartoon character with CSS

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Drawing Yoda with CSS

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Creating a cartoon with CSS Venn's Summer (with commentary)

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Drawing a Koala with HTML and CSS

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Centaur Slider with HTML + CSS + SVG

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Coding a Rain single-element toggle in HTML and CSS

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Drawing with CSS Cupid in Valentine's Day

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10 Trucos en CSS para mejorar (casi) cualquier página web

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Truco CSS Cambiar el color de los formularios con accent-color

Alvaro Montoro