.lds-ring {
    display: block;
    position: absolute;
    width: 55px;
    height: 55px;
    transform: translate(-50%, -50%);
    top: 40%;
    left: 50%;
    background: #fff;
    box-shadow: 0px 1px 10px #ccc;
    border-radius: 50%;
    z-index: 2;
}

.lds-ring div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 40px;
    height: 40px;
    margin: 7px;

    border: 6px solid rgb(0, 153, 255);
    border-radius: 50%;
    animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: rgb(0, 153, 255) transparent transparent transparent;
}

.lds-ring div:nth-child(1) {
    animation-delay: -0.45s;
}

.lds-ring div:nth-child(2) {
    animation-delay: -0.3s;
}

.lds-ring div:nth-child(3) {
    animation-delay: -0.15s;
}

@keyframes lds-ring {
    0% {
        transform: rotate(0deg);
    }

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