img,
.tab a{
    user-drag: none; 
    -moz-user-select: none;  
    -webkit-user-drag: none;
}

.btn-hover:hover{
    opacity: 0.9;
    cursor: pointer;
    -ms-transform: scale(1.1); /* IE 9 */
    -webkit-transform: scale(1.1); /* Safari */
    transform: scale(1.1);
}

.content{
    width: 1245px;
    height: 605px;
    background-repeat: no-repeat;
    background-position: center;
}

.icon_close_button{
    position: absolute;
    top: 12px;
    right: 0px;
}