.deskstop_logo.fifthylogo {margin-top: 3px;}
.deskstop_logo.fifthylogo img{height: 45px;}
.mob_logo.fifthylogo{margin-top: 6px; padding: 0;}
.mob_logo.fifthylogo img{max-width: 50px; width: 100%;}
.mob_logo {max-width: 60%;width: auto;}

@media screen and (max-width: 640px) {
.mob_logo {width: auto;}

}
@media screen and (max-width: 520px) {
.mob_logo {width: auto;}
}
@media...