#googleAdHeader{
position:relative;
width:100%;
z-index:1;
height:auto;
top:0;
overflow:hidden;
text-align: center;
}
#googleAdHeader img {
width:100%;
max-width: max-content;
margin: auto;
margin-bottom: 10px;
}
#googleAdHeader img:hover {
box-shadow: none;
}

.desktop-img,
.mobile-img {
text-align: center;
}

.desktop-img { display: none;}
.mobile-img { display: block;}

@media (min-width: 600px){
    .desktop-img { display: block;}
    .mobile-img { display: none;}    
}