body{  
    font-family: sans-serif;  
    background-image: url("image/background.webp");
    color: azure;  
}  
  
#header, #footer{  
    text-align: center;  
}

#tree-container {
    max-width: 20rem;
    display: flex;
    margin: auto;
}

#tree {
    width: 20rem;
    margin-top: 4rem;

    max-height: 95vh;

    z-index: 0;
}

#star {
    position: relative;
    margin: 0 -13rem;
    font-size: 5rem;
    cursor: pointer;

    z-index: 5;
}

.ornament {
    z-index: 10;

    position: relative;

    max-width: 100px;
    max-height: 100px;
}