html, body {
    height: 100%;
    margin: 0;
    overflow: auto;
}

#myExtensionWidget {
    position: absolute;
    top: calc(100vh - 70px);
    left: calc(100vw - 70px);
    width: 60px;
    height: 60px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 9999999;
}

#myExtensionWidget.expanded {
    width: 400px;
    height: 600px;
    border-radius: 10px;
}