.anim3-particle {
    $side: 20px;

    background: url('../res/seahorse.svg') no-repeat center center #aaa;
    background-size: $side $side;
    border-radius: $side / 2;
    color: #fff;
    height: $side;
    line-height: $side;
    margin: #{-$side / 2} 0 0 #{-$side / 2};
    position: absolute;
    text-align: center;
    width: $side;
    z-index: 1;

    &::after {
        border: 50px solid transparent;
        border-right-color: lightgreen;
        content: ' ';
        height: 0;
        left: -30px;
        opacity: 0.5;
        position: absolute;
        top: -40px;
        width: 0;
    }
}

.anim3-movement-circle {
    border: 2px dotted darkturquoise;
    position: absolute;
    transition: all 0.2s;
    z-index: 0;

    &:after {
        background: darkturquoise;
        border-radius: 2px;
        content:' ';
        height: 4px;
        left: 50%;
        margin-left: -2px;
        margin-top: -2px;
        position: absolute;
        top: 50%;
        width: 4px;
    }
}