body {
  height: 100vh;
  background-image:url('../images/bg_header.jpg');
  background-size:cover;
  background-position:center;
  font-family: 'Quicksand', sans-serif;
  margin:0;
}
.main-nav {
  display: flex;
  justify-content: flex-end;
  margin-top: 20px;
  margin-right: 20px;
  transition:.3s all ease-in-out;
}
.main-nav a {
  color:#fff;
  text-decoration: none;
  margin-left: 40px;
  font-size: 20px;
}
.burger-menu {
  display: none;
}

@media screen and (max-width:1000px) {
  .burger-menu {
    width: 30px;
    height: 30px;
    border:3px solid #fff;
    position: fixed;
    top: 15px;
    right: 15px;
    border-radius:10px;
    display: flex;
    flex-direction:column;
    justify-content: center;
    align-items: center;
    z-index:1;
    cursor:pointer;
  }
  .burger-menu span {
    width: 20px;
    height: 3px;
    border-radius:3px;
    background-color:#fff;
  }
  .burger-menu span:nth-of-type(2) {
    margin:3px 0;
  }
  .main-nav {
    position: fixed;
    top:0;
    left:0;
    width: 100%;
    height: 100vh;
    flex-direction:column;
    justify-content: center;
    align-items: center;
    margin:0;
    background-color:rgba(127, 65, 228, 0.562);
    transform:translateX(-100%);
  }
  .main-nav.active {
    transform:translateX(0);
  }
  .main-nav a {
    margin:15px 0;
  }
}