Triangles are basic shapes in geometry that can be used to create a variety of designs in web development. In CSS, you can create triangles using some simple techniques. In this article, we will learn two techniques for creating triangles in CSS.
Create triangles using borders
Create triangles using clipping paths
Create triangles using borders
The easiest way to create triangles in CSS is to use the border property. We can quickly create a basic triangular shape by creating a rectangular element and then using the border property to create the hypotenuse of the triangle. Here is an example of how to create an equilateral triangle using borders -
Example 1
Use the border property to create an equilateral triangle in CSS.
<html>
<head>
<style>
body{
text-align:center;
}
.triangle {
margin:auto;
width: 0;
height: 0;
border-bottom: 100px solid red;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
}
</style>
</head>
<body>
<h3 id="Equilateral-Triangle-Example-Using-Border-Property">Equilateral Triangle Example Using Border Property</h3>
<div class="triangle"></div>
</body>
</html>
In the above example, we created a div with class .triangle and set the width and height of the element to 0 because we will use the border property to create the triangle. We set the border-bottom property to create the base of the triangle, and the border-left and border-right properties to create the slanted edge. By setting the left and right borders to transparent, we create a diagonal edge that slopes toward the center of the element.
Create triangles using clipping paths
We can also create triangles in CSS using the clip-path property. This property allows us to define a custom clipping path for the element, which can be used to create various shapes, including triangles.
Example 2
Here is an example of how to use clipping paths to create a scalene triangle.
<html>
<head>
<style>
body {
text-align: center;
}
.triangle {
margin: auto;
padding: 10%;
border-radius: 2%;
width: 10%;
box-shadow: inset 0 0 80px violet;
clip-path: polygon(50% 0, 100% 100%, 0% 100%);
}
</style>
</head>
<body>
<h3 id="Equilateral-Triangle-Example-Using-Border-Property">Equilateral Triangle Example Using Border Property</h3>
<div class="triangle"></div>
</body>
</html>
In the above example, we created a div of class .triangle and set the width and height of the element to 0 because we will use the border and Clip-path properties to create the triangle. We set the border-radius property to create a slanted edge, and then use the Clip-path property to clip the rectangular element into a triangle by specifying the coordinates of the three vertices. The Polygon function takes as argument a list of x,y coordinates, with each point separated by commas.
in conclusion
Creating triangles in HTML and CSS is a valuable skill for web developers. By using the border and clipping path properties, we can quickly create basic equilateral and scalene triangles to enhance the visual design of a web page.
The above is the detailed content of How to create a triangle in CSS?. For more information, please follow other related articles on the PHP Chinese website!
Demystifying Screen Readers: Accessible Forms & Best PracticesMar 08, 2025 am 09:45 AMThis is the 3rd post in a small series we did on form accessibility. If you missed the second post, check out "Managing User Focus with :focus-visible". In
Adding Box Shadows to WordPress Blocks and ElementsMar 09, 2025 pm 12:53 PMThe CSS box-shadow and outline properties gained theme.json support in WordPress 6.1. Let's look at a few examples of how it works in real themes, and what options we have to apply these styles to WordPress blocks and elements.
Create a JavaScript Contact Form With the Smart Forms FrameworkMar 07, 2025 am 11:33 AMThis tutorial demonstrates creating professional-looking JavaScript forms using the Smart Forms framework (note: no longer available). While the framework itself is unavailable, the principles and techniques remain relevant for other form builders.
Comparing the 5 Best PHP Form Builders (And 3 Free Scripts)Mar 04, 2025 am 10:22 AMThis article explores the top PHP form builder scripts available on Envato Market, comparing their features, flexibility, and design. Before diving into specific options, let's understand what a PHP form builder is and why you'd use one. A PHP form
Working With GraphQL CachingMar 19, 2025 am 09:36 AMIf you’ve recently started working with GraphQL, or reviewed its pros and cons, you’ve no doubt heard things like “GraphQL doesn’t support caching” or
Making Your First Custom Svelte TransitionMar 15, 2025 am 11:08 AMThe Svelte transition API provides a way to animate components when they enter or leave the document, including custom Svelte transitions.
Show, Don't TellMar 16, 2025 am 11:49 AMHow much time do you spend designing the content presentation for your websites? When you write a new blog post or create a new page, are you thinking about
Classy and Cool Custom CSS Scrollbars: A ShowcaseMar 10, 2025 am 11:37 AMIn this article we will be diving into the world of scrollbars. I know, it doesn’t sound too glamorous, but trust me, a well-designed page goes hand-in-hand
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Linux new version
SublimeText3 Linux latest version
