#fixed-join-btn {
    border-radius: 100%;
    width: 55px;
    height: 55px;
    background: var(--color-heading-main);
    position: fixed;
    left: 30px;
    bottom: 30px;
    z-index: 9999;
    box-shadow: 1px 1px 5px 2px rgba(0,0,0,0.58);
-webkit-box-shadow: 1px 1px 5px 2px rgba(0,0,0,0.58);
-moz-box-shadow: 1px 1px 5px 2px rgba(0,0,0,0.58);
justify-content: center;
align-items: center;
align-content: center;
display: flex;
}

#fixed-join-btn svg {
    width: 30px;
    height: 30px;
}