* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: 'Roboto', sans-serif;
  font-size: 12pt;
}

body {
  padding: 0;
  margin: 0;
  align-items: center;
}


header {
  position:sticky;
  top:0;
  width: 100%;
  z-index: 10;
  background-color: #629DD1;
  padding: 20px;
  text-align: center;
}

#alles{
  display: flex;
  flex-direction: column;
  margin:0 20px;
}

#ueberschrift {
  width:100%;
  text-align: center;
  margin-top: 20px;
  padding:20px;
  background: linear-gradient(to bottom, rgba(151, 206, 255, 0.5), rgba(255, 189, 189, 0.5));
}

nav ul {
  display: flex;
  gap:30px;
  justify-content: flex-end;
  width: 100%;
  padding: 0 40px;
  list-style: none;
}

nav a {
  display: block;
  padding: 10px 15px;
  text-decoration: none;
  color: white;
  font-size: 24px;
  border: 1px solid transparent;
}

nav #active a,
a:hover {
  border: 1px solid white;
  background-color: #2A75B7;
  border-radius: 10px;
}