body {
    background: linear-gradient(to bottom, #839483, #8bc34a);
}



.tabs {
    display: flex;
    justify-content: center; 
    margin: 20px auto; 
    width: 100%;
}


.tabs ul {
    list-style: none; 
    padding: 0; 
    margin: 0; 
    display: flex; 
    gap: 10px; 
}


.tabs ul li {
    display: inline-block;
    padding: 10px 20px;
    background-color: #4caf50; 
    border-radius: 5px; 
    text-align: center; 
}


.tabs ul li a {
    text-decoration: none; 
    color: white; 
    font-weight: bold; 
}


.tabs ul li:hover {
    background-color: #014d05;
}


.nadpis {
    display:grid;
    justify-content: center;
    margin: 20px auto; 
    width: 100%; 
}