body{
    background-color: rgb(224, 235, 255);
    text-align: center;
}
nav img{
    height: 50px;
    width: 50px;
    margin-left: 400px;
}
nav a{
    text-decoration: none;
    margin-left: 50px;
    font-size: 18px;
    color: rgb(255, 255, 255);
}
nav h1{
    color: rgb(255, 255, 255);
}
nav{
    position: sticky;
    top:0;
    background-color: rgb(27, 27, 27);
    width: 100%;
    border-radius: 5px;
    text-align: left;
    padding: 1px;
}
.il{
    display: inline-block;
    width: 250px;
    height: 100px;
    margin: 10px;
    border: solid 2px black;
    padding: 20px;
    border-radius: 5px;
    overflow: auto
}
#on{
    margin-left: 500px;
    margin-right: 500px;
}
footer{
    background-color: rgb(198, 227, 255);
    position: absolute;
    bottom: 0;
    right: 0;
    left: 0;
}