html{
    background-color: black
}

h1{
    color: darkgreen;
    font-family: 'Times New Roman', Times, serif;
    text-align: center;
    font-size: 60px;
    opacity: 1;
    background-color: darkblue;
    border-style: solid;
    border: 5px;
    border-color: black;
    opacity: 1; 
    border-radius: 10px;
box-shadow: 4px 2px 49px 4px darkred;
}
img{
    margin-left: 40%;
    background-color: yellow;
    border-radius: 10px;
    border-style: solid;
    border-color: orangered;
    border-width: 0.4em;
}
.hidden{
    visibility: hidden;
}
.admin-hidden{
    visibility: hidden;
}
button{
    float:right;
}