How to Use the CSS Triangle & Shape Generator
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1
Choose the triangle pointing direction: Top, Bottom, Left, Right, Top-Left, or Top-Right.
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2
Adjust the Width and Height sliders to shape the tip angle.
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3
Pick a color using the color picker.
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4
Inspect the live rendered CSS triangle on the checkerboard preview.
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5
Copy the minimal CSS snippet (uses width: 0, height: 0, and transparent borders).
Practical Example & Use Case
Common Real-World Scenario
Creating tooltip arrows, dropdown menu pointers, and accordion indicators without adding SVG or image assets.
Technical Notes & Limitations
Browser Engine Architecture
Works across all browsers back to IE6 using standard border geometry.
Frequently Asked Questions
How do CSS border triangles work?
By setting an element width and height to 0, adjacent colored and transparent borders meet at angled 45-degree miter lines, creating crisp triangles.