Read the article: CSS @property and the New Style
A Pen by Ryan Mulligan on CodePen.
Created
September 4, 2024 04:40
-
-
Save awakeningspirit/5dbf4c6d3984a302ded88407bee4e357 to your computer and use it in GitHub Desktop.
Shiny call-to-action button
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <button class="shiny-cta"> | |
| <span>Get unlimited access</span> | |
| </button> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /* | |
| CSS @property and the New Style | |
| https://ryanmulligan.dev/blog/css-property-new-style/ | |
| */ | |
| @import url("https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,500&display=swap"); | |
| :root { | |
| --shiny-cta-bg: #000000; | |
| --shiny-cta-bg-subtle: #1a1818; | |
| --shiny-cta-fg: #ffffff; | |
| --shiny-cta-highlight: blue; | |
| --shiny-cta-highlight-subtle: #8484ff; | |
| } | |
| @property --gradient-angle { | |
| syntax: "<angle>"; | |
| initial-value: 0deg; | |
| inherits: false; | |
| } | |
| @property --gradient-angle-offset { | |
| syntax: "<angle>"; | |
| initial-value: 0deg; | |
| inherits: false; | |
| } | |
| @property --gradient-percent { | |
| syntax: "<percentage>"; | |
| initial-value: 5%; | |
| inherits: false; | |
| } | |
| @property --gradient-shine { | |
| syntax: "<color>"; | |
| initial-value: white; | |
| inherits: false; | |
| } | |
| .shiny-cta { | |
| --animation: gradient-angle linear infinite; | |
| --duration: 3s; | |
| --shadow-size: 2px; | |
| isolation: isolate; | |
| position: relative; | |
| overflow: hidden; | |
| cursor: pointer; | |
| outline-offset: 4px; | |
| padding: 1.25rem 2.5rem; | |
| font-family: inherit; | |
| font-size: 1.125rem; | |
| line-height: 1.2; | |
| border: 1px solid transparent; | |
| border-radius: 360px; | |
| color: var(--shiny-cta-fg); | |
| background: linear-gradient(var(--shiny-cta-bg), var(--shiny-cta-bg)) | |
| padding-box, | |
| conic-gradient( | |
| from calc(var(--gradient-angle) - var(--gradient-angle-offset)), | |
| transparent, | |
| var(--shiny-cta-highlight) var(--gradient-percent), | |
| var(--gradient-shine) calc(var(--gradient-percent) * 2), | |
| var(--shiny-cta-highlight) calc(var(--gradient-percent) * 3), | |
| transparent calc(var(--gradient-percent) * 4) | |
| ) | |
| border-box; | |
| box-shadow: inset 0 0 0 1px var(--shiny-cta-bg-subtle); | |
| &::before, | |
| &::after, | |
| span::before { | |
| content: ""; | |
| pointer-events: none; | |
| position: absolute; | |
| inset-inline-start: 50%; | |
| inset-block-start: 50%; | |
| translate: -50% -50%; | |
| z-index: -1; | |
| } | |
| &:active { | |
| translate: 0 1px; | |
| } | |
| } | |
| /* Dots pattern */ | |
| .shiny-cta::before { | |
| --size: calc(100% - var(--shadow-size) * 3); | |
| --position: 2px; | |
| --space: calc(var(--position) * 2); | |
| width: var(--size); | |
| height: var(--size); | |
| background: radial-gradient( | |
| circle at var(--position) var(--position), | |
| white calc(var(--position) / 4), | |
| transparent 0 | |
| ) | |
| padding-box; | |
| background-size: var(--space) var(--space); | |
| background-repeat: space; | |
| mask-image: conic-gradient( | |
| from calc(var(--gradient-angle) + 45deg), | |
| black, | |
| transparent 10% 90%, | |
| black | |
| ); | |
| border-radius: inherit; | |
| opacity: 0.4; | |
| z-index: -1; | |
| } | |
| /* Inner shimmer */ | |
| .shiny-cta::after { | |
| --animation: shimmer linear infinite; | |
| width: 100%; | |
| aspect-ratio: 1; | |
| background: linear-gradient( | |
| -50deg, | |
| transparent, | |
| var(--shiny-cta-highlight), | |
| transparent | |
| ); | |
| mask-image: radial-gradient(circle at bottom, transparent 40%, black); | |
| opacity: 0.6; | |
| } | |
| .shiny-cta span { | |
| z-index: 1; | |
| &::before { | |
| --size: calc(100% + 1rem); | |
| width: var(--size); | |
| height: var(--size); | |
| box-shadow: inset 0 -1ex 2rem 4px var(--shiny-cta-highlight); | |
| opacity: 0; | |
| } | |
| } | |
| /* Animate */ | |
| .shiny-cta { | |
| --transition: 800ms cubic-bezier(0.25, 1, 0.5, 1); | |
| transition: var(--transition); | |
| transition-property: --gradient-angle-offset, --gradient-percent, | |
| --gradient-shine; | |
| &, | |
| &::before, | |
| &::after { | |
| animation: var(--animation) var(--duration), | |
| var(--animation) calc(var(--duration) / 0.4) reverse paused; | |
| animation-composition: add; | |
| } | |
| span::before { | |
| transition: opacity var(--transition); | |
| animation: calc(var(--duration) * 1.5) breathe linear infinite; | |
| } | |
| } | |
| .shiny-cta:is(:hover, :focus-visible) { | |
| --gradient-percent: 20%; | |
| --gradient-angle-offset: 95deg; | |
| --gradient-shine: var(--shiny-cta-highlight-subtle); | |
| &, | |
| &::before, | |
| &::after { | |
| animation-play-state: running; | |
| } | |
| span::before { | |
| opacity: 1; | |
| } | |
| } | |
| @keyframes gradient-angle { | |
| to { | |
| --gradient-angle: 360deg; | |
| } | |
| } | |
| @keyframes shimmer { | |
| to { | |
| rotate: 360deg; | |
| } | |
| } | |
| @keyframes breathe { | |
| from, | |
| to { | |
| scale: 1; | |
| } | |
| 50% { | |
| scale: 1.2; | |
| } | |
| } | |
| html, | |
| body { | |
| height: 100%; | |
| } | |
| body { | |
| display: grid; | |
| place-items: center; | |
| color: white; | |
| background: #02040c; | |
| font-family: "Inter", sans-serif; | |
| font-optical-sizing: auto; | |
| font-weight: 500; | |
| font-style: normal; | |
| -webkit-font-smoothing: antialiased; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment