html { 
  background: url(../images/carte.jpg) no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}
body {
    overflow:hidden;
}

/* fullscreen setup */
html, body {
    /* give this to all tags from html to .fullscreen */
    height:100%;
}
.fullscreen,
.content-a {
    width:100%;
    min-height:100%;
}
.not-fullscreen,
.not-fullscreen .content-a,
.fullscreen.not-overflow,
.fullscreen.not-overflow .content-a {
    height:100%;
    overflow:hidden;
}

/* content centering styles */
.content-a {
    display:table;
    width:100%;
}
.content-b {
    display:table-cell;
    position:relative;
    vertical-align:middle;
    text-align:center;
}

#my-count-down{
    float: none;
    z-index: 1;
}
#bandeau{
    background-color: rgba(240, 240, 240, 0.4);
    width: 100%;
    height: auto;
    z-index: 2;
    position:relative;
    vertical-align:middle;
    text-align:center;
}

#hiddenbutton{
    position: absolute;
    left: 100px;
    top: 100px;
    background-image: url('../images/Logo-small.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: 20px 20px;
    width: 20px;
    height: 20px;
    cursor: pointer;
     z-index: 10001;
     display:none;
}


#beforesurprise{
    font-family:Comic Sans MS;
    font-weight: bold;
    font-size: 60px;
}