hill-generator.css

body {
  align-content: center;
  background: #f9f9f9;
  display: flex;
  margin: 0;
  overflow: hidden;
  -webkit-align-items: center;
}

.container {
  align-items: center;
  bottom: 0;
  display: flex;
  flex-direction: column;
  font-family: HelveticaNeue, HelveticaNeue, "Helvetica Neue", Helvetica, Arial, Roboto, sans-serif;
  height: calc(100% - 2rem);
  justify-content: space-between;
  padding: 1rem 0;
  position: absolute;
  top: 0;
  -webkit-align-items: center;
  -webkit-flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -webkit-justify-content: space-between;
  width: 100%;
}

.title {
  font-size: 1.953125rem;
  line-height: 1.216em;
  margin: 0;
}
  
.hill {
  font-size: 1.25rem;
  line-height: 1.2em;
  margin: 0 10%;
}

.hill__who {
  color: #e71d32;
}

.hill__what {
  color: #4178be;
}

.hill__wow {
  color: #323232;
}
  
.button {
  background: transparent;
  border: 4px solid #323232;
  color: #323232;
  font-size: 1.25rem;
  line-height: 1.2em;
  padding: 1rem 1.5rem;
  transition: .5s all linear;
  -webkit-transition: .5s all linear;
}

.button:hover {
  background: #323232;
  color: #f9f9f9;
  cursor: pointer;
}
  
.description {
  text-align: left;
}
    
.description__link {
  color: #323232;
  line-height: 1.5rem;
  text-decoration: none;
}

.description__link:hover {
  border-bottom: 2px solid #323232;
}

@media only screen and (min-width: 31.3125em) {
  .container {
    height: calc(100% - 4rem);
    height: calc(100vh - 4rem);
    padding: 2rem 0;
  }

  .title {
    font-size: 3.375rem;
    line-height: 1.11111111111em;
  }

  .hill, .button {
    font-size: 1.5rem;
    line-height: 1.25em;
  }
}

@media only screen and (min-width: 48.5625em) {
  .title {
    font-size: 4.23606798rem;
    line-height: 1.0623059em;
  }

  .hill, .button {
    font-size: 1.61803399rem;
    line-height: 1.15881373em;
  }
}