body {
  background: url("../img/bg-city.png") left top no-repeat #333;
  padding: 0;
  margin: 0;
  font-family: 'Arial', helvetica, sans-serif;
}
#element {
  display: inline-block;
  position: relative;
  margin: 200px 0 200px 400px;
  border: 2px solid #f00;
  color: #000;
  padding: 10px;
  width: 200px;
  height: 30px;
}
#element:hover {
  border-color: #00f;
}
#element2 {
  display: inline-block;
  position: relative;
  margin: 0 0 100px 1000px;
  border: 2px solid #f00;
  color: #000;
  padding: 10px;
  width: 200px;
  height: 30px;
}
#element2:hover {
  border-color: #00f;
}