html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  align-items: stretch;
  overflow: hidden;
}

body > * {
  flex: 1;
}

a{
  color: black;
  text-decoration: none;
}

@font-face {
  font-family: "FiraSans";
  src: url("fira-sans/FiraSans-Bold.otf");
}

section {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;

  transition: transform 0.5s ease-out;

  position: relative;
}

section:hover {
  transform: scale(1.15);
}

#cv::before,
#letter::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position-x: center;
  opacity: 0.6;

  transition: opacity 0.5s ease-out;
}

#cv:hover::before,
#letter:hover::before {
  opacity: 0.9;
}

#cv::before {
  background-image: url('./CV\ -\ Etienne\ Robert\ -\ May\ 27\,\ 2020-1.jpg');
}

#letter::before {
  background-position-y: center;
  background-image: url('./Cover\ Letter\ Mozilla\ -\ Etienne\ Robert\ -\ Preview.pdf.png');
}

@media only screen and (orientation:portrait) {
  body {
    flex-direction: column;
  }
}

h1 {
  position: relative;
  font-size: 6rem;
  font-family: "FiraSans";
}