.nav a{

?display: inline-block;

?-webkit-transition: all 0.2s ease-in;

?-moz-transition: all 0.2s ease-in;

?-o-transition: all 0.2s ease-in;

?-ms-transition: all 0.2s ease-in;

?transition: all 0.2s ease-in;

}

.nav a:hover{

?-webkit-transform:rotate(10deg);

?-moz-transform:rotate(10deg);

?-o-transform:rotate(10deg);

?-ms-transform:rotate(10deg);

?transform:rotate(10deg);

}