style.css

/* This CSS-file defines a common appearance for all html files */
body {
    padding: 0;
    margin: 0;
    background-color: #0d0f40;
}

.centeredCanvasDiv {
    position: absolute;
    width: 800px;
    height: 608px;
    top: 50%;
    left: 50%;
    margin-left: -401px; /* margin is -0.5 * width, since we set a border, we have to subtract one px more */
    margin-top: -305px;
    border-radius: 3px;
    border: 1px solid #ccc;
}

.centeredCanvas {
    position: absolute;
    top: 0;
    left: 0;
}

.centeredDiv {
    position: absolute;
    width: 800px;
    height: 608px;
    top: 50%;
    left: 50%;
    margin-left: -401px;
    margin-top: -305px;
    background-color: black;
    color: white;
    -webkit-font-smoothing: antialiased;
    border-radius: 3px;
    border: 1px solid #ccc;
}

.logoParagraph {
    margin-top: 20px;
    /* logo is 573px wide */
    margin-left: 113px;
}

.buttonParagraph {
    margin-top: 5px;
    margin-left: 73px;
}

.myForm {
    width: 400px;
    height: 120px;
    margin-left: 235px;
}