Web Front-end
HTML Tutorial
Shitou teaches you how to draw triangles and arrows using pure CSS3. _html/css_WEB-ITnose
Shitou teaches you how to draw triangles and arrows using pure CSS3. _html/css_WEB-ITnose
We often see some triangular graphics on some websites, but usually these are pictures. Now Shitou will teach you how to draw triangular graphics using pure CSS3 technology.
The following are the specific steps. After reading these, you will understand how to draw triangles and arrows.
1. Create a new element, any element, but I habitually use block elements. If the element is inline, display:block it.
2. Set its width and height to height:0px; width:0px;
3. Set The border attribute is used to implement triangles.
First of all, we need to understand what the border looks like. I wrote a style like this. The specific code is as follows:
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>绘制三角形</title> <style> .box{ margin: 20px auto;//设置图形居中 width: 0px; height: 0px; border: 50px solid transparent; border-top-color: #2DCB70; border-right-color:gold; border-bottom-color: #333333; border-left-color: red; } </style></head><body><div class="box"></div><div class="box1"></div><div class="box2"></div><div class="box3"></div><div class="box4"></div></body></html>
Screenshot As follows:
This is equivalent to stretching the four borders toward the center of the square.
The above code appears to merge 4 triangles into a square. It’s very clear here. Just keep what you want and set the others to transparent to achieve the triangle effect,
4, example
Draw downward, right, left and upward triangles respectively.
The implementation code is as follows.
!DOCTYPE html><html><head> <meta charset="utf-8"> <title>绘制三角形</title> <style> .box{ margin: 20px auto; width: 0px; height: 0px; border: 50px solid transparent; border-top-color: #2DCB70; border-right-color:gold; border-bottom-color: #333333; border-left-color: red; } .box1{ margin: 5px auto; width: 0px; height: 0px; border: 50px solid transparent; border-top-color: #2DCB70; } .box2{ margin: 5px auto; width: 0px; height: 0px; border: 50px solid transparent; border-left-color: red; } .box3{ margin: 5px auto; width: 0px; height: 0px; border: 50px solid transparent; border-right-color:gold; <span style="white-space:pre"> </span>} .box4{ margin: 0 auto; width: 0px; height: 0px; border: 50px solid transparent; border-bottom-color: #333333; } </style></head><body><div class="box"></div><div class="box1"></div><div class="box2"></div><div class="box3"></div><div class="box4"></div></body></html>The screenshot is as follows:
As can be seen from the above graphics:
Drawing a downward triangular arrow is equivalent to stretching the upper border downward.
border-top-color: #2DCB70;
Drawing an upward triangular arrow is equivalent to stretching the lower border upward.
border-bottom-color: #333333;
Drawing a triangle arrow to the left is equivalent to moving the right border to Left stretch.
Drawing a right-facing triangular arrow is equivalent to stretching the left border to the right.
After reading the above, you will learn to draw triangular arrows with CSS.
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1672
14
1428
52
1332
25
1277
29
1257
24
HTML: The Structure, CSS: The Style, JavaScript: The Behavior
Apr 18, 2025 am 12:09 AM
The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.
The Future of HTML, CSS, and JavaScript: Web Development Trends
Apr 19, 2025 am 12:02 AM
The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.
The Future of HTML: Evolution and Trends in Web Design
Apr 17, 2025 am 12:12 AM
The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.
HTML vs. CSS vs. JavaScript: A Comparative Overview
Apr 16, 2025 am 12:04 AM
The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.
HTML vs. CSS and JavaScript: Comparing Web Technologies
Apr 23, 2025 am 12:05 AM
HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.
HTML: Is It a Programming Language or Something Else?
Apr 15, 2025 am 12:13 AM
HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.
Beyond HTML: Essential Technologies for Web Development
Apr 26, 2025 am 12:04 AM
To build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.
What is the difference between <strong>, <b> tags and <em>, <i> tags?
Apr 28, 2025 pm 05:42 PM
The article discusses the differences between HTML tags , , , and , focusing on their semantic vs. presentational uses and their impact on SEO and accessibility.
