I fixed in this way: in CSS this part
#nav ul li a{
display: block;
float: left;
position:relative;
font-size: 14px;
font-weight:700;
text-transform: uppercase;
padding:0 15px;
height:40px;
line-height:40px;
}
I changed in this way (the last two strings)
#nav ul li a{
display: block;
float: left;
position:relative;
font-size: 14px;
font-weight:700;
text-transform: uppercase;
padding:0 15px;
height:auto;
line-height:30px;
}
my site: https://www.cracoviaguida.eu
