/* header bild */

html {
  overflow-x: hidden;
  margin-right: calc(-1 * (100vw - 100%));
}

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

.header-img-div {
  text-align: center;
}

.header-img {
  width: 80%;
  max-width: 1450px;
  margin: 0 auto;
}

/* ============ 
main 
==============*/

.grid-div {
  width: 80%;
  max-width: 1450px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 20% 20% 20% 20% 20%;
  grid-template-areas: "nav content content content content";
}

.nav-bar {
  grid-area: nav;
  font-size: 22px;
  position: fixed;
}

.content {
  grid-area: content;
  width: 90%;
  margin: 0 auto;
}

nav {
  font-family: Helvetica;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-right: 2px solid rgb(83, 83, 83);
}
nav li {
  margin-right: 3px;
}

nav li a {
  display: block;
  text-decoration: none;
  color: black;
  padding: 10px;
}

nav a:hover {
  background-color: #e2e2e2;
}

nav a:active {
  background-color: #c2c2c2;
}

h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 25px;
  font-weight: 100;
  text-align: center;
}

h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 20px;
  font-weight: 550;
  text-align: left;
  padding: 20px 0;
  margin-top: 0;
  margin-bottom: 0;
}

p {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 17px;
}

#nav-sub {
  padding: 7px;
  padding-left: 13px;
  font-style: italic;
  font-size: 18px;
}

h1 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 25px;
  font-weight: 550;
  margin-bottom: 10px;
}

/* =============
seiten-spezi
============= */

.nav-trathe {
  background-color: #e2e2e2;
}

.trauma-img {
  float: right;
  width: 20%;
  margin: 11px 0 10px 5%;
  display: block;
}

@media (max-width: 1100px) {
  .header-img {
    width: 90%;
  }

  .grid-div {
    width: 90%;
  }
}

@media (max-width: 1000px) {
  .nav-bar {
    font-size: 19px;
  }

  #nav-sub {
    font-size: 16px;
  }
}

@media (max-width: 900px) {
  .nav-bar {
    font-size: 17px;
  }

  #nav-sub {
    font-size: 15px;
    padding-left: 10px;
  }
}

@media (max-width: 800px) {
  .nav-bar {
    font-size: 17px;
  }

  .header-img {
    width: 95%;
  }

  .grid-div {
    width: 95%;
  }

  h2 {
    font-size: 20px;
  }

  #nav-sub {
    font-size: 14px;
  }

  h1 {
    font-size: 20px;
  }

  p {
    font-size: 15px;
  }

  h3 {
    font-size: 17px;
  }
}

@media (max-width: 750px) {
  .header-img {
    width: 100%;
  }

  .grid-div {
    width: 100%;
  }
}

@media (max-width: 700px) {
  .nav-bar {
    font-size: 14px;
  }

  #nav-sub {
    font-size: 11px;
  }
}

@media (max-width: 600px) {
  .nav-bar {
    font-size: 13px;
  }

  h2 {
    font-size: 17px;
  }

  #nav-sub {
    font-size: 11px;
    padding-left: 5px;
  }

  h1 {
    font-size: 17px;
  }

  p {
    font-size: 12px;
  }

  nav li a {
    padding-left: 3px;
  }

  h3 {
    font-size: 14px;
  }
}

@media (max-width: 530px) {
  .nav-bar {
    font-size: 11px;
  }

  #nav-sub {
    font-size: 9px;
    padding-left: 3px;
  }

  nav li a {
    padding-right: 6px;
    padding-top: 6px;
    padding-bottom: 6px;
  }

  nav ul {
    border-right: 1px solid rgb(83, 83, 83);
  }
}

@media (max-width: 440px) {
  .nav-bar {
    font-size: 10px;
  }

  #nav-sub {
    font-size: 8px;
  }

  nav li a {
    padding-left: 2px;
  }

  .grid-div {
    grid-template-columns: 22% 20% 20% 19% 19%;
  }
}

@media (max-width: 365px) {
  .grid-div {
    grid-template-columns: 24% 19% 19% 19% 19%;
  }
}

@media (max-width: 330px) {
  .grid-div {
    grid-template-columns: 26% 19% 19% 18% 18%;
  }
}