<style>
@-webkit-keyframes rotate-forever {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
@-moz-keyframes rotate-forever {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
@keyframes  rotate-forever {
    0% {
        -webkit-transform: rotate(0deg);
        -moz-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
        -o-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -o-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
.loading-spinner {
    -webkit-animation-duration: 0.75s;
    -moz-animation-duration: 0.75s;
    animation-duration: 0.75s;
    -webkit-animation-iteration-count: infinite;
    -moz-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-name: rotate-forever;
    -moz-animation-name: rotate-forever;
    animation-name: rotate-forever;
    -webkit-animation-timing-function: linear;
    -moz-animation-timing-function: linear;
    animation-timing-function: linear;
    height: 60px;
    width: 60px;
    border-radius: 50%;
    display: inline-block;
}
</style>
