<!-- 
- Single file SVG animation
- * can be used as CSS backgroud
- * total size is less than 2kb!
-->

<svg preserveAspectRatio="xMidYMid slice" viewBox="10 10 80 80">
    <defs>
        <style>
            @keyframes rotate {
					 0% {
                    transform: rotate(0deg);
                }
                100% {
                    transform: rotate(360deg);
                }
            }
            .out-top {
                animation: rotate 20s linear infinite;
                transform-origin: 13px 25px;
            }
            .in-top {
                animation: rotate 10s linear infinite;
                transform-origin: 13px 25px;
            }
            .out-bottom {
                animation: rotate 25s linear infinite;
                transform-origin: 84px 93px;
            }
            .in-bottom {
                animation: rotate 15s linear infinite;
                transform-origin: 84px 93px;
            }
        </style>
    </defs>
    <path fill="#9b5de5" class="out-top" d="M37-5C25.1-14.7,5.7-19.1-9.2-10-28.5,1.8-32.7,31.1-19.8,49c15.5,21.5,52.6,22,67.2,2.3C59.4,35,53.7,8.5,37-5Z"/>
    <path fill="#f15bb5" class="in-top" d="M20.6,4.1C11.6,1.5-1.9,2.5-8,11.2-16.3,23.1-8.2,45.6,7.4,50S42.1,38.9,41,24.5C40.2,14.1,29.4,6.6,20.6,4.1Z"/>
    <path fill="#00bbf9" class="out-bottom" d="M105.9,48.6c-12.4-8.2-29.3-4.8-39.4.8-23.4,12.8-37.7,51.9-19.1,74.1s63.9,15.3,76-5.6c7.6-13.3,1.8-31.1-2.3-43.8C117.6,63.3,114.7,54.3,105.9,48.6Z"/>
    <path fill="#00f5d4" class="in-bottom" d="M102,67.1c-9.6-6.1-22-3.1-29.5,2-15.4,10.7-19.6,37.5-7.6,47.8s35.9,3.9,44.5-12.5C115.5,92.6,113.9,74.6,102,67.1Z"/>
</svg>

<div class="links">
    <a href="https://dev.to/uuuuuulala/making-background-blob-animation-in-just-15kb-step-by-step-guide-2482" target="_blank">tutorial<img class="icon" src="https://ksenia-k.com/img/icons/link.svg"></a>
</div>

body {
    background-color: #fee440;
}
svg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
}


.links {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 18px;
    font-family: sans-serif;
}
a {
    text-decoration: none;
    color: black;
    margin-left: 1em;
}
a:hover {
    text-decoration: underline;
}
a img.icon {
    display: inline-block;
    height: 1em;
    margin: 0 0 -0.1em 0.3em;
}

// No JS