style.css

html, body{
  margin: 0;
  background-color: #555555;
  text-align: center;
}

.title{
  margin-top: 50px;
  font-family: Helvetica;
  font-size: 45px;
  color: white;
  font-weight: bold;
}

.title a{
  color: white;
  font-weight: bold;
  text-decoration: none;
}

.title a:active{
  color: red;
  font-weight: bold;
  text-decoration: none;
}

.title-small{
  margin-top: 50px;
  margin-bottom: 25px;
  margin-left: 100px;
  font-family: Helvetica;
  font-size: 45px;
  color: white;
  font-weight: bold;
  text-align: left;
}

.container1{
  text-align: left;
  padding: 0 100px;
}

.demo1{
  width: 130px;
  height: 70px;
  background-color: #222222;
  display: inline-block;
  line-height: 70px;
  font-size: 30px;
  font-family: Helvetica;
  font-weight: bold;
  text-align: center;
}

.demo2{
  width: calc(100% - 200px);
  margin-left: 100px;
  height: 1px;
  background-color: #222222;
}