#countries ul {
  float: left;
  width: 720px;

}
 
#countries  li {
float:left;
width:210px;
 
}

#cities ul {
  float: left;
  width: 720px;

}
 
#cities  li {
float:left;
width:210px;
 
}  

#hotels ul {
  float: left;
  width: 720px;

}
 
#hotels  li {
float:left;
width:330px;
 
}