.hrct-planet {
    margin: 0;
    padding: 0;
    height: 400px;
    width: 400px;
    position: relative;
    margin-left: calc((100% - 400px)/2);
}

.hrct-planet-object {
    border-radius: 50%;
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /*transform: translateY( 25px );*/
}

.hrct-planet-p-orbit, #hrct-m-orbit{
    border: 0.8px solid lightgrey;
    opacity: 0.5;
    background: transparent;
}

#hrct-belt {
    height: 194px;
    width: 194px;
    animation: spin 50s infinite linear;
    margin-top: 100px;
}

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

#hrct-m-orbit {
    height: 16px;
    width: 16px;
}

.hrct-planet-planet, #hrct-moon {
    z-index: 1;
}

#hrct-sun {
    height: 24px;
    width: 24px;
}

#hrct-moon {
    height: 2px;
    width: 2px;
    background-color: white;
}

#hrct-mercury {
    height: 4px;
    width: 4px;
}

#hrct-venus {
    height: 6px;
    width: 6px;
}

#hrct-earth {
    height: 8px;
    width: 8px;
}

#hrct-mars {
    height: 7px;
    width: 7px;
}

#hrct-jupiter {
    height: 24px;
    width: 24px;
}

#hrct-saturn {
    height: 24px;
    width: 24px;
    border-radius: 0%;
}

#hrct-uranus {
    height: 10px;
    width: 10px;
}

#hrct-neptune {
    height: 8px;
    width: 8px;
}