Viber
.slika-sponzor {
height: 80px;
width: 80px;
position: relative;
}
.slika-sponzor img {
max-height: 100%;
max-width: 100%;
width: auto;
height: auto;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
}