body{
    font-family: sans-serif;
    /*background: rgba(red, green, blue, alpha);*/
    background: rgba(83, 167, 247, 0.81);
}
h1{
    color: #3e3e3e;
    text-align: center;
}

#imageGallery{
    list-style: none;
    margin: 0 auto;
    max-width: 780px;
    text-align: center;
    padding: 0;
    display: block;
}

#imageGallery itemDiv{
    padding: 5px;
    background: #ffffff;
    margin: 5px;
    display: inline-block;
}

a{
    text-decoration: none;
}

#imageGallery itemDiv img{
    display: block;
    width: 130px;
    height: 100px;
}