Pure CSS Material Circular Progress

index.html

<progress class="pure-material-progress-circular"/>

pure-css-material-circular-progress.markdown

Pure CSS Material Circular Progress

A single element CSS only implementation of Material Design Circular Progress that works on Chrome, Safari, Firefox, Samsung Internet and Edge (kinda). Use it freely wherever you like. Part of collection Pure CSS Material Components.

See it in action:

• Material Registration Form

Other variant(s):

• Pure CSS Material Linear Progress

Comments, Complaints and Compliments are welcomed below in the comment section or on Twitter @finnhvman

Be nice ;-)

A Pen by Ben Szabo on CodePen.

License.

script.js

/*
Known Issues:
1. There is no support for determinate progress
Graceful Degradation:
1. Edge displays ms type of dot animation
*/

style.css

.pure-material-progress-circular {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-sizing: border-box;
    border: none;
    border-radius: 50%;
    padding: 0.25em;
    width: 3em;
    height: 3em;
    color: rgb(var(--pure-material-primary-rgb, 33, 150, 243));
    background-color: transparent;
    font-size: 16px;
    overflow: hidden;
}

.pure-material-progress-circular::-webkit-progress-bar {
    background-color: transparent;
}

/* Indeterminate */
.pure-material-progress-circular:indeterminate {
    -webkit-mask-image: linear-gradient(transparent 50%, black 50%), linear-gradient(to right, transparent 50%, black 50%);
    mask-image: linear-gradient(transparent 50%, black 50%), linear-gradient(to right, transparent 50%, black 50%);
    animation: pure-material-progress-circular 6s infinite cubic-bezier(0.3, 0.6, 1, 1);
}

:-ms-lang(x), .pure-material-progress-circular:indeterminate {
    animation: none;
}

.pure-material-progress-circular:indeterminate::before,
.pure-material-progress-circular:indeterminate::-webkit-progress-value {
    content: "";
    display: block;
    box-sizing: border-box;
    margin-bottom: 0.25em;
    border: solid 0.25em transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    width: 100% !important;
    height: 100%;
    background-color: transparent;
    animation: pure-material-progress-circular-pseudo 0.75s infinite linear alternate;
}

.pure-material-progress-circular:indeterminate::-moz-progress-bar {
    box-sizing: border-box;
    border: solid 0.25em transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    width: 100%;
    height: 100%;
    background-color: transparent;
    animation: pure-material-progress-circular-pseudo 0.75s infinite linear alternate;
}

.pure-material-progress-circular:indeterminate::-ms-fill {
    animation-name: -ms-ring;
}

@keyframes pure-material-progress-circular {
    0% {
        transform: rotate(0deg);
    }
    12.5% {
        transform: rotate(180deg);
        animation-timing-function: linear;
    }
    25% {
        transform: rotate(630deg);
    }
    37.5% {
        transform: rotate(810deg);
        animation-timing-function: linear;
    }
    50% {
        transform: rotate(1260deg);
    }
    62.5% {
        transform: rotate(1440deg);
        animation-timing-function: linear;
    }
    75% {
        transform: rotate(1890deg);
    }
    87.5% {
        transform: rotate(2070deg);
        animation-timing-function: linear;
    }
    100% {
        transform: rotate(2520deg);
    }
}

@keyframes pure-material-progress-circular-pseudo {
    0% {
        transform: rotate(-30deg);
    }
    29.4% {
        border-left-color: transparent;
    }
    29.41% {
        border-left-color: currentColor;
    }
    64.7% {
        border-bottom-color: transparent;
    }
    64.71% {
        border-bottom-color: currentColor;
    }
    100% {
        border-left-color: currentColor;
        border-bottom-color: currentColor;
        transform: rotate(225deg);
    }
}