.contact_left{
width:110px;
float:left;
margin-bottom:5px;
}

.contact_right{
float:left;
margin-bottom:5px;
}

@media screen and (max-width: 487px)
{
  .contact_left{
  width:100%;
  font-weight:bold;
  }

  .contact_right{
  width:100%;
  }
}