.head_title {

    padding-top: 100px;

    padding-bottom: 30px;

    text-align: center;

}    



.img_first {

    padding-bottom: 50px;

}



.text_info {

    text-decoration: none;

    color: black;

}





img {

    opacity: 1;

    -moz-transition: opacity 2s;

    -webkit-transition: opacity 2s;

    -o-transition: opacity 2s;

    transition: opacity 2s;

}



img[data-src]{

    opacity: 0;

}