psychic-ui/src/spinner/spinner.styl

the working mans css framework

.spinner-overlay
    position: relative
    top: 0
    left: 0
    width: 100%
    height: 100%
    background-color: #fff
    opacity: 0.75
    z-index: 3

    .spinner-wrapper
        position: relative
        top: calc(50% - 50px)

    .spinner-message
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        -ms-box-sizing: border-box;
        box-sizing: border-box;
        width: 100%;
        margin-top: 30px;
        text-align: center;
        font-weight: 400;
        z-index: 100;
        outline: none;

    .spinner
        height: 30px
        width: 30px
        margin: 0 auto;
        opacity: 1
        background-color: rgba(255, 255, 255, 0.701961);
        -webkit-animation: rotation .7s infinite linear;
        -moz-animation: rotation .7s infinite linear;
        -o-animation: rotation .7s infinite linear;
        animation: rotation .7s infinite linear;
        border-left: 8px solid rgba(0, 0, 0, .20);
        border-right: 8px solid rgba(0, 0, 0, .20);
        border-bottom: 8px solid rgba(0, 0, 0, .20);
        border-top: 8px solid rgba(33, 128, 192, 1);
        border-radius: 100%;

        &.spinner-absolute
            position: absolute;

        for $brand in $brands
            &.spinner-{$brand}
              border-top: 8px solid $brands[$brand]

            &.spinner-{$brand}.spinner-done
              border-left: 8px solid $brands[$brand]
              border-right: 8px solid $brands[$brand]
              border-bottom: 8px solid $brands[$brand]
              border-top: 8px solid $brands[$brand]

            &.spinner-{$brand}.done:after
              border-right: 8px solid $brands[$brand]
              border-bottom: 8px solid $brands[$brand]

    @keyframes rotation {
        from {
            transform: rotate(0deg)
        }
        to {
            transform: rotate(359deg)
        }
    }