JSFiddle - React, Tailwind, and code Playground

by Marc Malignan

HTML

<div class="galaxy">
    <div class="planet mercury"></div>
    <div class="planet venus"></div>
    <div class="planet earth"></div>
    <div class="planet mars"></div>
</div>

CSS

@-webkit-keyframes spin { 
    /*100% { -webkit-transform: rotate(360deg); }*/
}

body { background:rgb(50,50,50); margin: 80px; }

.galaxy {
    position: relative;
    margin-top: 200px;
}
.galaxy:before {
    content: '';
    position: absolute;
    width:50px; height:50px;
    top:50%; left:50%;
    margin: -25px 0 0 -25px;
    background: orange;
    box-shadow: 0 0 20px orange;
    border-radius: 50%;
}

.planet {
    position: absolute;
    top:50%; left:50%;
    border: 1px solid gray;
}

.planet:after {
    content: '';
    position: absolute;
    border-radius: 50%;
}

.planet.mercury {
    width:80px; height:80px;
    margin: -40px 0 0 -40px;
    -webkit-animation: spin .87s linear infinite;
}
.planet.mercury:after {
    width: 12px; height: 12px;
    top:-6px; left:-6px;
    background: gray;
}

.planet.venus {
    width:160px; height:160px;
    margin: -80px 0 0 -80px;
    -webkit-animation: spin 2.24s linear infinite;
}
.planet.venus:after {
    width: 20px; height: 20px;
    top:-10px; left:-10px;
    background: tan;
}

.planet.earth {
    width:240px; height:240px;
    margin: -120px 0 0 -120px;
    -webkit-animation: spin 3.65s linear infinite;
}
.planet.earth:after {
    width: 30px; height: 30px;
    top:-15px; left:-15px;
    background: royalblue;
}
.planet.mars {
    width:320px; height:320px;
    margin: -160px 0 0 -160px;
    -webkit-animation: spin 6.86s linear infinite;
}
.planet.mars:after {
    width: 46px; height: 46px;
    top:-23px; left:-23px;
    background: orangered;
}