.lds-roller {
     display: inline-block;
     position: relative;
     width: 80px;
     height: 80px;
}
 .lds-roller div {
     animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
     transform-origin: 40px 40px;
}
 .lds-roller div:after {
     content: " ";
     display: block;
     position: absolute;
     width: 7px;
     height: 7px;
     border-radius: 50%;
     background: rgb(0, 85, 140);
     margin: -4px 0 0 -4px;
}
 .lds-roller div:nth-child(1) {
     animation-delay: -0.036s;
}
 .lds-roller div:nth-child(1):after {
     top: 63px;
     left: 63px;
}
 .lds-roller div:nth-child(2) {
     animation-delay: -0.072s;
}
 .lds-roller div:nth-child(2):after {
     top: 68px;
     left: 56px;
}
 .lds-roller div:nth-child(3) {
     animation-delay: -0.108s;
}
 .lds-roller div:nth-child(3):after {
     top: 71px;
     left: 48px;
}
 .lds-roller div:nth-child(4) {
     animation-delay: -0.144s;
}
 .lds-roller div:nth-child(4):after {
     top: 72px;
     left: 40px;
}
 .lds-roller div:nth-child(5) {
     animation-delay: -0.18s;
}
 .lds-roller div:nth-child(5):after {
     top: 71px;
     left: 32px;
}
 .lds-roller div:nth-child(6) {
     animation-delay: -0.216s;
}
 .lds-roller div:nth-child(6):after {
     top: 68px;
     left: 24px;
}
 .lds-roller div:nth-child(7) {
     animation-delay: -0.252s;
}
 .lds-roller div:nth-child(7):after {
     top: 63px;
     left: 17px;
}
 .lds-roller div:nth-child(8) {
     animation-delay: -0.288s;
}
 .lds-roller div:nth-child(8):after {
     top: 56px;
     left: 12px;
}
 @keyframes lds-roller {
     0% {
         transform: rotate(0deg);
    }
     100% {
         transform: rotate(360deg);
    }
}

.loader {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    display:flex;
    justify-content: center;
    align-items: center;
}