quorum-code/docs/theme/assets/stylesheets/extra.css

.help-sidetab {
    position: fixed;
    top: 70%;
    right: -71px;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    color: white;
    background-color: #00e290;
    transform: rotate(270deg);
    padding: 5px 20px 5px 20px;
    border-radius : 10px 10px 0px 0px;
    cursor: pointer;
    font-size: medium;
}