How to Create a Button with an Animated Border and a Running Glow in CSS | No JavaScript
🔗 Source code: / 153355329
In this video, we'll create a modern button with a running glow effect using only HTML and pure CSS, without JavaScript. We'll cover advanced layout techniques, such as working with masks (CSS Masking) to create a "hole" in the center of the button, using the offset-path property to move an element along a complex path, and customizing CSS variables to easily control the corner radius. This effect will add a premium touch to your interface and is perfect for call-to-action (CTA) buttons.
🕒 Timestamps:
00:00:00 - Demonstrating an animated button with a running glow
00:00:30 - Writing HTML markup: Creating a container and layers for the animation
00:02:00 - Setting up CSS variables (Root) to control the corner radius
00:02:20 - Styling a basic button: background, padding, and a semi-transparent border
00:04:10 - Creating a Border Overlay: Using inset and positioning
00:05:30 - The magic of CSS Masking: How to cut out the center of a button using a linear-gradient
00:06:50 - Setting up a Mask Composite: Combining masks for cross-browser support
00:07:25 - Creating a Glow Mover: Setting up a glow gradient and blur
00:09:10 - Working with offset-path: Setting a motion path along the button's borders
00:10:40 - Setting up Keyframe animations: triggering the endless movement of a "comet"
00:12:15 - Responsiveness testing: changing the radius and length of the glow using variables
💡 Key technologies from the video:
✅ CSS Masking & Composite - allows you to leave only a narrow area of the frame visible, hiding the center.
✅ offset-path: rect() - a modern way to make an element move along the perimeter of a block.
✅ CSS Variables - make your code flexible: change the radius once at the root, and it updates everywhere.
✅ Filter: blur() - gives a hard gradient a soft neon glow effect.
Helpful resources:
👉 Flexbox in CSS: A Step-by-Step Course: / 1320002
👉 Frontend: Best Resources: / 1752178
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👉 The entire "CSS from Scratch for Beginners" playlist: • Полный курс CSS с нуля | Основы CSS для на...
👉 The entire "HTML from Scratch for Beginners" playlist: • HTML уроки для начинающих с нуля: Полный курс
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#CSS #HTML #ButtonAnimation #Frontend #WebDesign #BorderAnimation #Layout #TopchiyDev #WebAnimation #Tutorial