body { 
    background-image: url("notes-background.png");
}

h1 {
    color: green;
    text-align: center;
    text-decoration: dotted;
    text-decoration-thickness: 7px;
    text-decoration-line: underline;
    font-size: 50px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', serif;
}
    header {
        background-color: lightgreen; 
        color: white; 
        padding: 20px;
    }
    
    nav ul {
        margin: 0;
        padding: 0;
        display: flex; 
        justify-content: center; 
    }
    
    nav ul li {
        margin: 0 100px; 
    }
    
    nav ul li a {
        color: black; 
        text-decoration:dotted; 
        text-decoration: black;
        text-decoration: underline;
        padding: 5px 5px;
        display: inline-block;
        font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    }
    
    nav ul li a:hover {
    background-color: blueviolet; 
    border-radius: 10000px;
}
img  {
    width: 1000px; 
    height: auto; 
    display:flex; 
    margin: 100px ; 
    border-radius: 100px;
    align-items: end;
}