.loaderbg {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    width: 100%;
    height: 100%;
    text-align: center;
    perspective: 1024px;
    background: rgba(51, 51, 51, .7);
    transition: opacity .2s ease-in-out, visibility .2s ease-in-out;
    display: none;
}

.lds-wrapper {
    top: 45%;
    display: inline-block;
    position: relative;
    width: 120px;
    height: 120px;
    z-index: 1000;
}

.lds-loader {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
}

.lds-loader div {
    display: inline-block;
    position: absolute;
    left: 8px;
    width: 16px;
    background: yellow;
    animation: lds-loader 1.2s cubic-bezier(0, 0.5, 0.5, 1) infinite;
}

.lds-loader div:nth-child(1) {
    left: 8px;
    animation-delay: -0.24s;
}

.lds-loader div:nth-child(2) {
    left: 32px;
    animation-delay: -0.12s;
}

.lds-loader div:nth-child(3) {
    left: 56px;
    animation-delay: 0;
}

.loader {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: block;
    margin: 15px auto;
    position: relative;
    background: #FFFF00;
    box-shadow: -24px 0 #FFFF00, 24px 0 #FFFF00;
    box-sizing: border-box;
    animation: shadowPulse 2s linear infinite;
}

@keyframes shadowPulse {
    33% {
        background: #FFFF00;
        box-shadow: -24px 0 #0000FF, 24px 0 #FFFF00;
    }

    66% {
        background: #0000FF;
        box-shadow: -24px 0 #FFFF00, 24px 0 #FFFF00;
    }

    100% {
        background: #FFFF00;
        box-shadow: -24px 0 #FFFF00, 24px 0 #0000FF;
    }
}

@keyframes lds-loader {
    0% {
        top: 8px;
        height: 32px;
    }

    50%,
    100% {
        top: 24px;
        height: 16px;
    }
}