*{
  padding: 0;
  margin: 0;
}
body{
  background:linear-gradient(to top ,rgba(26, 0, 83, 1),rgba(3, 0, 36, 1));
  height: 100vh;
}
header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  margin: 5px 30px;
  padding: 13px;
  position: absolute;
  z-index: 5;
}
header ul li{
  display: inline-block;
}
header a {
  color: rgb(255, 255, 255);
  text-decoration: none;
}
header ul li a{
  font-size: 18px;
  margin-right: 10px;
  transition: 0.3s;
}

header ul li a:hover{
  background-color: white;
  padding: 5px;
  border-radius: 15px;
  color: black;
}
.main {
  position: relative;
  height: 100vh;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.main::after{
  content: '';
  position: absolute;
  bottom: 0;
  height: 80px;
  width: 100%;
  background:linear-gradient(to top,  rgb(85, 2, 86)  ,transparent);
}

.main img {
  position: absolute; 
  width: 100%;
  height: 100vh;
  object-fit: cover;
}

#moon{
  mix-blend-mode: screen;
  transform: translateY(70px);
}

.nouvil{
  color: white;
  position: absolute;
  font-size: 20px;
  transform: translateY(-140px);
}

.content{
  color: white;
  padding: 20px;
}

.content h2{
  font-size: 25px;
  margin: 20px;
}

.content p {
  margin: 20px;
}