Generate high-performance CSS shapes for tooltips and UI components.
CSS triangles aren't "real" shapes ΓÇö they use zero-width elements and thick transparent borders to create angles.
To point up, the bottom border is colored while the left and right borders are transparent.
Copy the generated properties and apply them to any div or pseudo-element (::before/::after).
When the content width and height are 0, the borders meet at the center. By making some borders transparent and one solid, a triangle is formed from the border width.
Yes, this is the most common use case. Developers often use these triangles on pseudo-elements to create directional arrows for tooltip bubbles.
Since the sizes are defined in pixels, you can easily use CSS variables or media queries to change the triangle size across different screen sizes.