CSS Triangle Generator Tool - Create CSS Triangles in Real Time

Real-Time Preview

Adjust the controls to modify your CSS triangle in real-time. The code updates automatically.

Properties

Triangle Direction

Triangle Size

Width (px)

20px 100px 300px

Height (px)

20px 100px 300px

Triangle Color

Background Color

Animation

Enable pulse animation

Border Method

Border method (recommended)

Clip-path method

Generated CSS Code

Up Triangle

/* CSS Triangle Code */ .triangle { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid #007bff; }

How to Create CSS Triangles: A Complete Guide

CSS triangles are a clever technique using borders to create triangle shapes without images. This tool helps you generate perfect CSS triangles for arrows, tooltips, decorative elements, and more.

How to Use This CSS Triangle Generator

Select triangle direction using the direction buttons (Up, Down, Left, Right).
Adjust size using the width and height sliders for precise dimensions.
Choose colors for both the triangle and background for better visibility.
Toggle animation to add a subtle pulse effect to your triangle.
Select method between border (compatible with older browsers) or clip-path (modern approach).
Copy the generated CSS code and use it in your project.

Understanding the CSS Border Method

The border method creates triangles by manipulating an element's borders. When you set an element's width and height to 0 and give it thick borders, the borders meet at diagonal lines. By making one border colored and the others transparent, you create a triangle.

/* Example: Upward triangle */ .triangle-up { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-bottom: 100px solid #007bff; } /* Example: Downward triangle */ .triangle-down { width: 0; height: 0; border-left: 50px solid transparent; border-right: 50px solid transparent; border-top: 100px solid #007bff; }

Practical Applications of CSS Triangles

Tooltip pointers for indicating which element a tooltip belongs to
Dropdown arrows for navigation menus
Decorative elements in modern web design
Progress indicators showing direction or flow
Before/after pseudo-elements for advanced shapes

Why Use This CSS Triangle Generator?

Manually calculating border widths for specific triangle dimensions can be challenging. This tool eliminates the guesswork by providing real-time visual feedback as you adjust properties. The generated code is production-ready and includes vendor prefixes when necessary for maximum browser compatibility.

Pro Tip

For responsive designs, consider using relative units (like viewport width) instead of pixels. You can modify the generated code by replacing "px" units with "vw" or "%" values.