body{
    background-color: rgb(0, 26, 109);
    color: cyan;
    font-family: sans-serif;
    overflow: hidden;
}

h1{
    margin: 0;
    padding: 0;
    font-size: 1.5em;
}

.content-iframe {
    border: 2px solid purple;
    position: absolute;
    left: 250px;
    top: 0;
    width: calc( 100% - 250px);
    height: 100%;
    background-color: rgb(210, 210, 210);
}

ul{
    list-style: none;
    padding: 0;
}

li{
    color: cyan;
    padding: 5px;
}

a{
    color: cyan;
    text-decoration: none;
    font-size: 12px;
}

a:hover{
    color: white;
}