body{
  min-height: 100vh;
  max-width: auto;
  margin: 0 auto;
  padding-left: 10%;
  padding-right: 10%;
  align-items: center;
}

  div.menu {
    margin-left: 100px;
    padding: 1px 16px;
    width: 100%;
    text-decoration: none;

  }

  ul.menu a {
    list-style-type: none; /* Remove bullets */
    padding: 0; /* Remove padding */
    margin: 0; /* Remove margins */
    text-decoration: none;
    list-style-type: none;
}
  h3, h1.h-as-h3 {
  margin-left: 40px;
  font-size: 18px;
  }
   div.content {
    margin-left: 100px;
    padding: 1px 16px;
    width: 80%;

  }
    @media screen and (max-width: 700px) {
    div.menu {margin-left: 0;}
    div.content {margin-left: 0;}

  }

  #myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 25px;
  border: none;
  outline: none;
  background-color: #ba9966;
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: var(--gris-secondaire);
}

  @media screen and (max-width: 400px) {
     div.menu {margin-left: 0;}
    div.content {margin-left: 0;}
  }