css 3はLoadingを実現してアニメーションをロードします

.loading_animation {
    border: 2px solid #e10b0b;
    border-bottom-color: transparent;
    border-left-color: transparent;
    border-radius: 50%;
    -webkit-animation: 0.6s loading linear infinite;
    -o-animation: 0.6s loading linear infinite;
    animation: 0.6s loading linear infinite;
    position: relative;
    display: inline-block;
    width: 26px;
    height: 26px;
}


@-webkit-keyframes loading {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes loading {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}