styles.css

a.btn {
    display: inline-block;
    padding: 0.35em 1.2em;
    border: 0.1em solid #000033;
    border-radius: 6px;
    margin: 0 0.3em 0.3em 0;
    border-radius: 0.12em;
    box-sizing: border-box;
    text-decoration: none;
    /* font-family:'Roboto',sans-serif; */
    font-family: Verdana, Helvetica, sans-serif;
    font-weight: 300;
    color: #000 !important;
    text-align: center;
    transition: all 0.1s;
}
a.btn:hover {
    color: #fff !important;
    background-color: #000033;
}

.lesson {
    padding: 16px;
    margin: 0 auto;
    box-sizing: border-box;
    width: 95vw;
    height: 50px;
    border-radius: 6px;
    border: 0.1em solid #000033;
    color: #000 !important;
    font-family: Verdana, Helvetica, sans-serif;
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.lesson-info {
    background: #000033;
    color: #fff;
}
.lesson-info > * {
    color: #fff;
}

.lesson input[type='checkbox']{
    transform: scale(1.5);
}

.gano-container {
    font-size: 1.5rem;
    font-family: Verdana, Helvetica, sans-serif;
    background:#000033;
    color: #fff;
    position: fixed; left: 10px; bottom: 20px;
    padding:1rem;
    border-radius: 6px;
}

.about-container{
    font-size: 0.5rem;
    font-family: Verdana, Helvetica, sans-serif;
    background:#000033;
    color: #fff;
    position: fixed; right: 10px; bottom: 20px;
    padding:0.5rem;
    border-radius: 6px;
}