header {
    background-color: #181818;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

body {
    background-color: rgb(219, 219, 219);
    margin: 0;
    text-align: center;
    font-size: 1.2rem;
}

p {
    text-align: center;
}

.centered-list {
    list-style: none;
    padding: 0;
}

.centered-list li {
    text-align: center;
    padding: 5px 0;
}

iframe {
    border: solid 5px red;
}

iframe:hover {
    border: solid 5px blue;
}
.links li{
    cursor: pointer;
    text-decoration: underline;
    text-decoration-line:none ;
    text-decoration-thickness:none ;
    text-decoration-style: none;
    text-decoration-color:white ;
    
    }
.links li :visited{
    color: white;
}