.btn {
        font-family: Roboto;
        font-size: 20px;
        font-weight: 500;
        letter-spacing: 0;
        line-height: 20px;
        text-align: center;
        box-sizing: border-box;
        border-radius: 8px;
        margin-bottom:10px;
        text-decoration:none;
        padding:15px 20px;
    }