stylesheet.css

html {
    background-image: url("background.jpg");
    margin: 2px;
}
#header {
    color: white;
    text-align: center;
}
p {
    margin: 5px 2px 5px 2px;
    color: white;
    font-size: 20px;
}
p.subtitle {
    font-weight: bold;
    color: white;
    font-size: 25px;
}
img {
    border: 2px solid blue;
    border-radius: 5px;
}
.center {
    text-align: center;
}

.circleImage {
    border: 2px solid white;
    border-radius: 100px;
    width: 100px;
    height: 100px;
}