body {
  margin: 0 auto;
  padding: 0;
  background-color: #fdfffc;
  font-family: "roboto";
}

div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 4% 4% 0 42%;
}

.retour {
  margin-left: 32%;
  font-size: 12px;
  font-weight: 200;
}

a:hover {
  font-weight: 400;
}

main {
  display: flex;
  flex-direction: column;
  flex-basis: 42%;
}

hr {
  width: 100%;
  color: #011627;
  opacity: 0.3;
  margin: 8% 0 8% 0;
}

h1 {
  color: #011627;
  font-weight: 300;
  font-size: 24px;
}

h2 {
  color: #011627;
  font-weight: 300;
  font-size: 20px;
  margin: 5% 0 1% 0;
}

.h1bis {
  margin: 3% 0 8% 0;
}

p {
  color: #011627;
  font-weight: 300;
  font-size: 16px;
  margin: 0 0 0 0;
}

a {
  color: #011627;
  font-weight: 400;
  text-decoration: none;
  transition: 0.2s ease-out;
}
a:hover {
  font-weight: 600;
}

@media screen and (max-width: 1600px) {
  div {
    margin: 4% 4% 0 0;
  }

  .retour {
    margin-left: 10%;
  }
}

@media screen and (max-width: 920px) {
  main {
    flex-basis: 70%;
  }
}