/* Style the buttons inside the tab */
.tab4 a {
    font-family: 'Aster';
    cursor: pointer;
    transition: 0.3s;
    font-size: 17px;
}

.tab4 a:hover {
    background-color: rgb(58, 122, 124);
}

/* Style the tab (onglet)*/
.tab4 nav {
    background-color: #555;
}

.tab4 nav ul {
    list-style-type: none;
    list-style: none;
    text-align: center;
}

.tab4 nav ul li {
    float: left;
    margin-left: -5px;
    text-align: center;
    position: relative;
    width: 25%;
}

.tab4 nav ul::after {
    content: "";
    display: table;
    clear: both;
    width: 25%;
}

.tab4 nav a {
    display: block;
    text-decoration: none;
    color: white;
    border-bottom: 2px solid transparent;
    padding: 10px 10px;
}