body {
    font-family: Arial, Verdana, serif;
    background-image: url("bg.jpg");
    background-attachment: fixed;
    background-position: top center;
    background-repeat: no-repeat;
    background-size: cover;
}

h1 {
    color: #fff;
    font-size: 5em;
    text-align: center;
    font-weight: bold;
    font-family: Verdana, serif;
    margin-bottom: 100px;
}
div.box {
    background-color: #00000090;
    width: 90%;
    margin: 100px auto;
    min-height: 400px;
    padding: 10% 10px;
    border-radius: 20px;
    border: 1px solid slategray;

}
div.box2 {
    background-color: #ffffff50;
    width: 90%;
    margin: 100px auto;
    min-height: 400px;
    padding: 10% 30px;
    border-radius: 20px;
    border: 1px solid slategray;

}
div.box2 input[type=text], div.box2 input[type=email], div.box2 input[type=tel] {
    background-color: #ffffffcc;
    margin-top: 20px;
}

div.box2 input[type=submit] {
    width: 100%;
    margin: 32px auto;
}

h2 {
    color: #fff;
    font-size: 3em;
    text-align: center;
}
h3 {
    color: #fff;
    font-size: 2em;
    text-align: center;
    margin-bottom: 32px;
}
h4 {
    color: #fff;
    font-size: 1.5em;
    text-align: center;
}