<div class="loader">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
</div>
.loader {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
}

.loader span {
    border: 6px solid #000;
    border-radius: 50%;
    /* change this color to whatever you want */
    border-color: #000 transparent transparent transparent;
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 51px;
    height: 51px;
    margin: 6px;
    animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.loader span:nth-child(1) {
    animation-delay: -0.45s;
}

.loader span:nth-child(2) {
    animation-delay: -0.3s;
}

.loader span:nth-child(3) {
    animation-delay: -0.15s;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

External CSS

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External JavaScript

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