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

:root {
  --blau: #005BA9;
  --hg-farbe: #F3F3F3;
  --akzentfarbe: #E6000E;
}

.carousel {
  width: 50%;
  margin: 0 auto;
  margin-bottom: 3rem;
}

main {
  margin-top: 3rem;
}

h2 {
  text-align: center;
}

.navi ul {
  display: flex;
  justify-content: space-evenly;
  margin-top: 4rem;
}

.navi ul li {
  list-style: none;
}

.navi ul li a {
  text-decoration: none;
  margin: 0 1rem;
  color: var(--blau);
  border: var(--blau) 2px solid;
  padding: 0.4rem;
  border-radius: 5px;
}

.navi ul li a:hover {
  color: var(--akzentfarbe);
  border: var(--akzentfarbe) 2px solid;
}

.referenzen {
  margin-top: 4rem;
}

/* Media Queries */

@media screen and (max-width: 1000px) {
  .navi ul li a {
    margin: 0;
  }
}

@media screen and (max-width: 720px) {
  .navi ul {
   display: block;
  }
  .navi ul li {
    margin: 1rem;
  }
  .navi ul li a {
    border: none;
    text-decoration: underline;
  }
  .navi ul li a:hover {
    border: none;
    color: var(--blau);
  }
}