body {
    background-color: dimgray;
}
h1 {
    text-align: center;
    color: white;
    font-family: Arial;
    padding: 3px;
}
h2 {
    text-align: center;
    color: white;
    font-family: Arial;
    padding: 3px;
}
p {
    text-align: center;
    color: white;
    font-family: Arial;
    padding: 3px;
}
footer {
    text-align: center;
    font-family: Arial;
    padding: 3px;
    color: white;
}
a {
    text-align: center;
    font-family: Arial;
    padding: 3px;
    color: white;
}
details {
    text-align: center;
    font-family: Arial;
    padding: 3px;
    color: white;
}
header {
    text-align: center;
    font-family: Arial;
    padding: 3px;
    color: white;
}
select {
    text-align: center;
    font-family: Arial;
    padding: 3px;
    color: white;
}
.center-image {
    display: block; /* Images are inline by default, change to block */
    margin-left: auto; /* Automatically distribute left margin */
    margin-right: auto; /* Automatically distribute right margin */
}
img {
    display: block; /* Images are inline by default, change to block */
    margin-left: auto; /* Automatically distribute left margin */
    margin-right: auto; /* Automatically distribute right margin */
}