body {
    font-family: Arial, sans-serif;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f9;
}

.welcome-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 80%;
    margin: auto;
}

a {
    text-decoration: none;
    color: #4CAF50;
}

.tablink {
    background-color: #555;
    color: white;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    font-size: 17px;
    width: 25%;
}

.tablink:hover {
    background-color: #777;
}

/* Style the tab content */
.tabcontent {
    color: white;
    display: none;
    padding: 50px;
    text-align: center;
}

.tab_selected {
    background-color: #219453;
}