styles.css

@import url('https://fonts.googleapis.com/css?family=Ubuntu+Condensed|Ubuntu+Mono');

html, body {
  font-family: 'Ubuntu Mono', monospace;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Ubuntu Condensed', sans-serif;
}

a {
  font-family: 'Ubuntu Mono', monospace;
  border-bottom-width: 2px;
  border-bottom-style: solid;
  border-bottom-color: #fff;
  color: inherit
}

a:hover {
  border-bottom-width: 4px;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

.header {
  background: #E95420;
}

.headerContentContainer {
  height: 45vh;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  align-content: center
}

@media screen and (max-width: 768px) {
  .headerContentContainer {
    height: fit-content;
    padding: 0 20px 50px 20px;
  }
}

.headerContentContainer h1 {
  color: #fff;
  font-size: 4em;
}

.headerContentContainer p {
  color: #fff;
  font-size: 1.5em;
  margin: 10px 0 0 0;
}

.headerContentContainer p a {
  border-bottom-color: #e6e6e6;
}

.buttonsContainer {
  background: #F6F6F5;
}

.buttonsContentContainer {
  padding: 100px 0 100px 0;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
}

.buttonsContentContainer button {
  flex-grow: 1;
  width: calc(100% * (1/3) - 10px - 1px);
  margin: 20px;
}