Tillitsdone
down Scroll to discover

CSS Mask-Composite Powerful Compositing Tool

Discover the CSS mask-composite property, a powerful tool for combining mask layers.

Use add, subtract, intersect, and exclude options to create complex visual effects.
thumbnail

The mask-composite CSS Property

The mask-composite CSS property allows you to combine multiple mask layers by specifying how they should interact with each other. You can add, subtract, intersect, or exclude layers to create complex visual effects.

Baseline 2023

As of December 2023, the mask-composite CSS property is supported across the latest devices and browser versions. Always test it in your target environments to ensure compatibility.

Description

The mask-composite property lets you define how multiple mask layers interact. It uses keyword values like add, subtract, intersect, and exclude, each representing a different compositing operation. Global values like inherit, initial, revert, revert-layer, and unset provide general control over the property’s behavior.

Syntax

Here’s how to use the mask-composite property:

/* Keyword values */
mask-composite: add;
mask-composite: subtract;
mask-composite: intersect;
mask-composite: exclude;
/* Global values */
mask-composite: inherit;
mask-composite: initial;
mask-composite: revert;
mask-composite: revert-layer;
mask-composite: unset;

Values

  • add: The source is placed over the destination.
  • subtract: The source is placed where it falls outside of the destination.
  • intersect: The parts of the source that overlap the destination replace the destination.
  • exclude: The non-overlapping regions of the source and destination are combined.
  • inherit: Inherits the value from its parent element.
  • initial: Sets the property to its default value.
  • revert: Resets the property to its parent element’s specified value if it is inheritable.
  • revert-layer: Resets the property to its parent layer’s value.
  • unset: Resets the property to its initial value if it is not inheritable, or to its inherited value if it is inheritable.

Formal Definition

  • Initial Value: add
  • Applies To: All elements in HTML, and container elements in SVG (excluding <defs> and graphics elements).
  • Inherited: No
  • Computed Value: Same as the specified value.
  • Animation Type: Discrete

Formal Syntax

mask-composite = <compositing-operator>#
<compositing-operator> = add | subtract | intersect | exclude

Examples

Adding Mask Layers

Overlay the current mask layer on top of the layers below it using the add keyword.

<!DOCTYPE html>
<html>
<head>
<style>
.geeks {
width: 22%;
height: 200px;
background: green;
-webkit-mask-image: url("image.svg"), url("image2.svg");
-webkit-mask-size: 140px, 120px;
-webkit-mask-position: 140px 60px, 50px;
-webkit-mask-repeat: no-repeat;
mask-composite: add;
}
</style>
</head>
<body>
<div class="geeks"></div>
</body>
</html>

Subtracting Mask Layers

Subtract the area of the current mask layer from the layers below it using the subtract keyword.

<!DOCTYPE html>
<html>
<head>
<style>
.geeks {
width: 22%;
height: 200px;
background: green;
-webkit-mask-image: url("image.svg"), url("image2.svg");
-webkit-mask-size: 140px, 120px;
-webkit-mask-position: 140px 60px, 50px;
-webkit-mask-repeat: no-repeat;
mask-composite: subtract;
}
</style>
</head>
<body>
<div class="geeks"></div>
</body>
</html>

Intersecting Mask Layers

Ensure that only the overlapping areas of the mask layers are visible using the intersect keyword.

<!DOCTYPE html>
<html>
<head>
<style>
.geeks {
width: 22%;
height: 200px;
background: green;
-webkit-mask-image: url("image.svg"), url("image2.svg");
-webkit-mask-size: 140px, 120px;
-webkit-mask-position: 140px 60px, 50px;
-webkit-mask-repeat: no-repeat;
mask-composite: intersect;
}
</style>
</head>
<body>
<div class="geeks"></div>
</body>
</html>

Excluding Mask Layers

Combine the non-overlapping regions of the mask layers using the exclude keyword.

<!DOCTYPE html>
<html>
<head>
<style>
.geeks {
width: 22%;
height: 200px;
background: green;
-webkit-mask-image: url("image.svg"), url("image2.svg");
-webkit-mask-size: 140px, 120px;
-webkit-mask-position: 140px 60px, 50px;
-webkit-mask-repeat: no-repeat;
mask-composite: exclude;
}
</style>
</head>
<body>
<div class="geeks"></div>
</body>
</html>

Specifications

The mask-composite property is defined in the CSS Masking Module Level 1 specification. This module outlines the behavior and usage of masking properties in CSS, ensuring consistency across different browsers and platforms.

Specification:

Browser Compatibility

Here’s a quick summary of the browser compatibility for the mask-composite property:

  • Firefox: Supported in Firefox 53 and later.
  • Safari: Supported in Safari 15.4 and later.

For the most accurate and up-to-date information on browser compatibility, check out the Browser Compatibility Data (BCD) tables.

See Also

To learn more about CSS masking and compositing, these resources can help:

  • Clipping and Masking in CSS: An in-depth guide on CSS clipping and masking techniques. WebsiteUrl
  • CSS Masking Module Level 1: The official specification for CSS masking, with detailed information on how masking properties work. WebsiteUrl
  • CSS mask-image Property: Learn how to apply custom images as masks using the mask-image property. WebsiteUrl
  • CSS mask-clip Property: Understand how to control the clipping area of a mask using the mask-clip property. WebsiteUrl
  • CSS mask-origin Property: Discover how to set the positioning area of a mask image using the mask-origin property. WebsiteUrl

These resources will help you create more advanced and visually appealing web designs using CSS masking and compositing.

icons/logo-tid.svg Latest Blogs
Discover our top articles, selected to support the growth of your business.
https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F10%2FTill-its-done_SEO_R43_Sep_1440x697.jpg@webp สร้างเว็บไซต์ 1 เว็บ ต้องใช้งบเท่าไหร่? เจาะลึกทุกองค์ประกอบ website development cost อยากสร้างเว็บไซต์แต่ไม่มั่นใจในเรื่องของงบประมาณ อ่านสรุปเจาะลึกตั้งแต่ดีไซน์, ฟังก์ชัน และการดูแล พร้อมตัวอย่างงบจริงจาก Till it&#8217;s done ที่แผนชัด งบไม่บานปลายแน่นอน https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F10%2FTill-its-done_SEO_R42_Sep_1440x697.jpg@webp Next.js สอน 14 ขั้นตอนเบื้องต้น: สร้างโปรเจกต์แรกใน 30 นาที เริ่มต้นกับ Next.js ใน 14 ขั้นตอนเพียงแค่ 30 นาที พร้อม SSR/SSG และ API Routes ด้วยตัวอย่างโค้ดง่าย ๆ อ่านต่อเพื่อสร้างโปรเจ็กต์แรกได้ทันทีที่นี่ https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F10%2FTill-its-done_SEO_R41_Sep_1440x697.jpg@webp วิธีสมัคร Apple Developer Account เพื่อนำแอปขึ้น App Store ทีละขั้นตอน อยากปล่อยแอปบน App Store ระดับโลก มาอ่านคู่มือสมัคร Apple Developer Account พร้อมเคล็ดลับ TestFlight และวิธีอัปโหลดที่ง่ายในบทความเดียวนี้ได้เลย https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F10%2FTill-its-done_SEO_R38_Sep_1440x697.jpg@webp TypeScript Interface คืออะไร? อธิบายพร้อมวิธีใช้และข้อแตกต่างจาก Type เรียนรู้วิธีใช้ TypeScript Interface เพื่อสร้างโครงสร้างข้อมูลที่ปลอดภัยและเข้าใจง่าย พร้อมเปรียบเทียบข้อดีข้อแตกต่างกับ Type ที่คุณต้องรู้ ถูกรวมเอาไว้ในบทความนี้แล้ว https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F09%2FTill-its-done_SEO_R36_Sep_1440x697.jpg@webp Material-UI (MUI) คืออะไร อยากสร้าง UI สวยงามและเป็นมืออาชีพในเวลาอันรวดเร็วใช่ไหม มาทำความรู้จักกับ Material-UI (MUI) ที่ช่วยให้คุณพัฒนาแอปพลิเคชันบน React ได้ง่ายและดูดีในทุกอุปกรณ์ https://imgproxy-landing-page.tillitsdone.com/sig/rs:fit:1200:630/plain/https%3A%2F%2Fcms-r2.tillitsdone.com%2Fwp-content-prod%2Fuploads%2F2025%2F09%2FTill-its-done_SEO_R27_Sep_1440x697.jpg@webp เปรียบเทียบ 3 วิธีติดตั้ง install node js บน Ubuntu: NVM vs NodeSource vs Official Repo แบบไหนดีที่สุด? เรียนรู้วิธีติดตั้ง Node.js บน Ubuntu ด้วย NVM, NodeSource หรือ Official Repo เลือกวิธีที่เหมาะกับความต้องการของคุณ พร้อมเปรียบเทียบ เพื่อการพัฒนาที่มีประสิทธิภาพ!
icons/logo-tid.svg

Talk with CEO

Ready to bring your web/app to life or boost your team with expert Thai developers?
Contact us today to discuss your needs, and let’s create tailored solutions to achieve your goals. We’re here to help at every step!
🖐️ Contact us
down Explore our best articles, cover a wide variety of technologies
Our knowledge base
196 Articles
Explore right
icons/logo-react.svg ReactJs
Popular JavaScript library for building user interfaces with a component-based architecture.
160 Articles
Explore right
icons/flutter.svg Flutter
UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.
144 Articles
Explore right
icons/logo-nodejs.svg Nodejs
JavaScript runtime for building scalable, high-performance server-side applications.
58 Articles
Explore right
icons/next-js.svg Nextjs
React framework enabling server-side rendering and static site generation for optimized performance.
38 Articles
Explore right
icons/tailwind.svg TailwindCSS
Utility-first CSS framework for rapid UI development.
36 Articles
Explore right
icons/code-outline.svg Typescript
Superset of JavaScript adding static types for improved code quality and maintainability.
126 Articles
Explore right
icons/code-outline.svg Golang
Programming language known for its simplicity, concurrency model, and performance.
67 Articles
Explore right
icons/code-outline.svg AstroJs
Astro is an all-in-one web framework. It includes everything you need to create a website, built-in.
38 Articles
Explore right
icons/code-outline.svg Jest
Versatile testing framework for JavaScript applications supporting various test types.
16 Articles
Explore right
icons/code-outline.svg Website development th
11 Articles
Explore right
icons/code-outline.svg Mobile application th
5 Articles
Explore right
icons/code-outline.svg Reactjs th
4 Articles
Explore right
icons/code-outline.svg Nextjs th
3 Articles
Explore right
icons/code-outline.svg Flutter th
1 Articles
Explore right
icons/code-outline.svg Software house th
1 Articles
Explore right
icons/code-outline.svg Nodejs th
1 Articles
Explore right
icons/code-outline.svg Typescript th
337 Articles
Explore right
icons/css-4.svg CSS
CSS3 is the latest version of Cascading Style Sheets, offering advanced styling features like animations, transitions, shadows, gradients, and responsive design.
Let's keep in Touch
Thank you for your interest in Tillitsdone! Whether you have a question about our services, want to discuss a potential project, or simply want to say hello, we're here and ready to assist you.
We'll be right here with you every step of the way.
Contact Information
rick@tillitsdone.com+66824564755
Find All the Ways to Get in Touch with Tillitsdone - We're Just a Click, Call, or Message Away. We'll Be Right Here, Ready to Respond and Start a Conversation About Your Needs.
Address
9 Phahonyothin Rd, Khlong Nueng, Khlong Luang District, Pathum Thani, Bangkok Thailand
Visit Tillitsdone at Our Physical Location - We'd Love to Welcome You to Our Creative Space. We'll Be Right Here, Ready to Show You Around and Discuss Your Ideas in Person.
Social media
FacebookInstagramLinkedIn
Connect with Tillitsdone on Various Social Platforms - Stay Updated and Engage with Our Latest Projects and Insights. We'll Be Right Here, Sharing Our Journey and Ready to Interact with You.
We anticipate your communication and look forward to discussing how we can contribute to your business's success.
We'll be here, prepared to commence this promising collaboration.
Frequently Asked Questions
Explore frequently asked questions about our products and services.
Whether you're curious about features, warranties, or shopping policies, we provide comprehensive answers to assist you.