A css loading animation which uses keyframes as well as SASS and Compass to position the dots around the edge of the circle. It also uses haml and prefix-free :)
A Pen by Hillary Thomas on CodePen.
Created
July 26, 2022 11:35
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CSS Loading Animation
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| .container | |
| .loading-overlay | |
| .loading-anim | |
| .border.out | |
| .border.in | |
| .border.mid | |
| .circle | |
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| @import "compass/css3"; | |
| $blue: #0000FF; | |
| $blue2:#BFBFFF; | |
| $blue3: #7879FF; | |
| input, select, textarea { | |
| /* I want my default button style back */ | |
| font-size: 90%; | |
| } | |
| * { | |
| box-sizing: border-box; | |
| } | |
| .container { | |
| margin: 20px; | |
| width: calc(100% - 40px); | |
| height: auto; | |
| } | |
| .loading-overlay { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| width: 100%; | |
| height: 100%; | |
| background-color: rgba(255, 255, 255, 0); | |
| transition: background-color .2s ease-out; | |
| } | |
| $loader-size: 200px; | |
| $animation-length: 5s; | |
| .loading-anim { | |
| position: relative; | |
| width: $loader-size; | |
| height: $loader-size; | |
| margin: auto; | |
| perspective: 800px; | |
| transform-style: preserve-3d; | |
| transform: translateZ(-100px) rotateY(-90deg) rotateX(90deg) rotateZ(90deg) scale(.5); | |
| opacity: 0; | |
| transition: all .2s ease-out; | |
| .circle { | |
| width: 100%; | |
| height: 100%; | |
| $blue2:#BFBFFF; | |
| animation: spin $animation-length linear infinite; | |
| } | |
| .border { | |
| position: absolute; | |
| border-radius: 50%; | |
| border: 3px solid $blue; | |
| } | |
| $out: 70%; | |
| .out { | |
| top: (100% - $out) / 2; | |
| left: (100% - $out) / 2; | |
| width: $out; | |
| height: $out; | |
| border: 5px solid $blue2; | |
| border-left-color: transparent; | |
| border-right-color: transparent; | |
| animation: spin 2s linear reverse infinite; | |
| } | |
| $in: 64%; | |
| .in { | |
| top: (100% - $in) / 2; | |
| left: (100% - $in) / 2; | |
| width: $in; | |
| height: $in; | |
| border: 5px solid $blue3; | |
| border-top-color: transparent; | |
| border-bottom-color: transparent; | |
| animation: spin 2s linear infinite; | |
| } | |
| $mid: 20%; | |
| .mid { | |
| top: (100% - $mid) / 2; | |
| left: (100% - $mid) / 2; | |
| width: $mid; | |
| height: $mid; | |
| border: 5px solid $blue2; | |
| border-left-color: transparent; | |
| border-right-color: transparent; | |
| animation: spin 0.51s linear infinite; | |
| } | |
| } | |
| .loading .loading-anim { | |
| transform: translateZ(0) rotateY(0deg) rotateX(0deg) rotateZ(0deg) scale(1); | |
| opacity: 1; | |
| } | |
| .loading .loading-overlay { | |
| background: rgba(255, 255, 255, .5); | |
| } | |
| $size: 20px; | |
| @keyframes spin { | |
| from { | |
| transform: rotate(0deg); | |
| } | |
| to { | |
| transform: rotate(360deg); | |
| } | |
| } | |
| @keyframes jitter { | |
| 0% { | |
| transform: scale(1, 1); | |
| } | |
| 25% { | |
| transform: scale(0.7, 0.7); | |
| } | |
| 50% { | |
| transform: scale(1, 1); | |
| } | |
| 75% { | |
| transform: scale(1.3, 1.3); | |
| } | |
| 100% { | |
| transform: scale(1, 1); | |
| } | |
| } | |
| @keyframes fade-in-out { | |
| 0% { | |
| opacity: 0.8; | |
| } | |
| 25% { | |
| opacity: 0.2; | |
| } | |
| 75% { | |
| opacity: 1; | |
| } | |
| 100% { | |
| opacity: 0.8; | |
| } | |
| } |
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