.bn-spinner-overlay {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);

    &.bn-spinner-overlay-transparent {
        background: transparent;
    }
}

.bn-spinner {
    display: inline-block;
    position: relative;

    div {
        box-sizing: border-box;
        display: block;
        position: absolute;
        border: 8px solid var(--white);
        .border-radius(50%);
        animation: bn-spinner 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
        border-color: var(--white) transparent transparent transparent;

        &:nth-child(1) {
            animation-delay: -0.45s;
        }

        &:nth-child(2) {
            animation-delay: -0.3s;
        }

        &:nth-child(3) {
            animation-delay: -0.15s;
        }
    }
}

@-webkit-keyframes bn-spinner {
    0% {
        transform: rotate(0deg);
    }

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

@keyframes bn-spinner {
    0% {
        transform: rotate(0deg);
    }

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