#Box1 {
  width: 50%;
  margin: 15px auto;
  background-color: #ffd;
  border: 5px dashed #f4a460;
  padding: 1.5em;
}
#Box2 {
  width: 25em;
  border-bottom: 10px double darkslategray;
  border-top: 10px double darkslategray;
  background-color: #dff;
  padding-left: 20px;
  padding-right: 20px;
  padding-top: 2em;
  padding-bottom: 2em;
  margin: 2em;
  margin-bottom: 20px;
}

#Box3 {
  margin-top: 2em;
  margin-bottom: 1em;
  margin-left: 500px;
  margin-right: 150px;
  outline: 1em lightsalmon;
  padding: 30px;
  background-color: burlywood;
}