h1 {
  font-family: Arial, sans-serif; /* web safe fonts: http://www.w3schools.com/cssref/css_websafe_fonts.asp */
  font-size: 50px;
  line-height: 2em; /* 1 em = the currently specified font size */
  text-decoration: underline;
}

p {
  font-family: 'Roboto', sans-serif;
  font-size: 20px;
  line-height: 30px;
}