body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.mySideNav a {
    text-decoration: none;
    display: block;
    padding: 12px;
    background-color: #0081cb;
    width: 120px;
    text-align: center;
    margin-bottom: 40px;
    border-radius: 0 10px 10px 0;
    color: #fff;
    left: -120px;
    position: relative;
    transition: 0.5s;
}

.mySideNav a:hover {
    left: -10px;
}