body
{
    background-color: silver;
}
h1{
    margin: 25px;
    text-align: center;
    font-size: 30px;
    font-weight: 200;
    font: Comic Sans;
}
.imgScreen {
    width:720px;
    margin:auto;
}
img{
    margin-bottom: 10px;
    width: 100%;
}