.stateful-loader {
    margin: 0;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-left-color: #5cb85c;
    animation-name: loader-spin;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    position: absolute;
    display: block;
    top: calc(50% - 16px);
    left: calc(50% - 16px);
    vertical-align: top;
    box-sizing: content-box;
    z-index:10;
}

    .stateful-loader,
    .stateful-loader:after {
        border-radius: 50%;
        width: 32px;
        height: 32px;
    }

.stateful-load-complete {
    -webkit-animation: none;
    animation: none;
    border-color: #5cb85c;
    transition: border 500ms ease-out;
}

.stateful-load-error {
    -webkit-animation: none;
    animation: none;
    border-color: red;
    transition: border 500ms ease-out;
}

.stateful-checkmark {
    display: none;
    box-sizing: content-box;
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
}

    .stateful-checkmark.stateful-draw:after {
        opacity: 1;
        height: 16px;
        width: 8px;
        transform-origin: left top;
        border-right: 2px solid #5cb85c;
        border-top: 2px solid #5cb85c;
        content: '';
        left: 8px;
        top: 17px;
        position: absolute;
        animation-duration: 1.2s;
        animation-timing-function: ease;
        animation-name: checkmark;
        transform: scaleX(-1) rotate(135deg);
    }

    .stateful-checkmark.stateful-error:before, .stateful-checkmark.stateful-error:after {
        position: absolute;
        left: 15px;
        top: 6px;
        content: ' ';
        height: 20px;
        width: 2px;
        background-color: #f00;
    }

        .stateful-checkmark.stateful-error:before {
            transform: rotate(45deg);
        }

        .stateful-checkmark.stateful-error:after {
            transform: rotate(-45deg);
        }

@keyframes loader-spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes checkmark {
    0% {
        height: 0;
        width: 0;
        opacity: 1;
    }

    33% {
        height: 6px;
        width: 8px;
        opacity: 1;
    }

    66% {
        height: 13px;
        width: 8px;
        opacity: 1;
    }

    100% {
        height: 16px;
        width: 8px;
        opacity: 1;
    }
}