.overlay-loader {
    display: block;
    margin: auto;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ffffff;
}
.loader {
    position: fixed ;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 97px;
    height: 97px;

}
.loader div {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1px solid rgb(0,0,0);
    position: absolute;
    top: 2px;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
.loader div:nth-child(odd) {
    border-top: none;
    border-left: none;
}
.loader div:nth-child(even) {
    border-bottom: none;
    border-right: none;
}
.loader div:nth-child(2) {
    border-width: 2px;
    left: 0;
    top: -4px;
    width: 12px;
    height: 12px;
}
.loader div:nth-child(3) {
    border-width: 2px;
    left: -1px;
    top: 3px;
    width: 18px;
    height: 18px;
}
.loader div:nth-child(4) {
    border-width: 3px;
    left: -1px;
    top: -4px;
    width: 23px;
    height: 23px;
}
.loader div:nth-child(5) {
    border-width: 3px;
    left: -1px;
    top: 4px;
    width: 31px;
    height: 31px;
}
.loader div:nth-child(6) {
    border-width: 4px;
    left: 0;
    top: -4px;
    width: 39px;
    height: 39px;
}
.loader div:nth-child(7) {
    border-width: 4px;
    left: 0;
    top: 6px;
    width: 49px;
    height: 49px;
}
@keyframes loader {
    0% {
        -webkit-transform: scale(1.05);
        transform: scale(1.05);
    }
    5% {
        -webkit-transform: scale(1.25);
        transform: scale(1.25);
    }
    39% {
        -webkit-transform: scale(0.9);
        transform: scale(0.9);
    }
    45% {
        -webkit-transform: scale(1.15);
        transform: scale(1.15);
    }
    60% {
        -webkit-transform: scale(1.05);
        transform: scale(1.05);
    }
    100% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
@-webkit-keyframes loader {
    0% {
        -webkit-transform: scale(1.05);
        transform: scale(1.05);
    }
    5% {
        -webkit-transform: scale(1.25);
        transform: scale(1.25);
    }
    39% {
        -webkit-transform: scale(0.9);
        transform: scale(0.9);
    }
    45% {
        -webkit-transform: scale(1.15);
        transform: scale(1.15);
    }
    60% {
        -webkit-transform: scale(1.05);
        transform: scale(1.05);
    }
    100% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
.loader {
    -webkit-animation: loader 0.8s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
    animation: loader 0.8s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
}