body {
    background: url("../images/background.jpg") no-repeat center fixed;
    background-size: 50% auto;
    margin:0;
    padding:0;
}

h1 {
    margin-top: 20px;
    font-family: 'Roboto';font-size: 16px;
    font-weight: bold;
    color: dimgrey;
    text-align: center;
}

footer {
    position: fixed;
    right: 30;
    bottom: 0;
    font-family: 'Roboto';font-size: 10px;
    color: silver;
    text-align: right;
}

.button {
    background-color: dimgrey;
    border: none;
    color: white;
    padding: 1px 25px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 12px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    position: relative;
    left: 50%; /* the left edge of the button is now in the center of the parent element. Now we need to nudge the button back to the left by 50% of the button width to make it center aligned. */
    transform: translateX(-50%);
    box-shadow: 0 4px 16px 0 rgba(0,0,0,0.2), 0 4px 20px 0 rgba(0,0,0,0.19);


}

.button:hover {
    background-color: darkgrey;
    color: white;
    text-decoration: none;

}