<!-- Buttons -->
.button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;

}

.button1:hover {
  background-color: #8AC5FF;
  color: white;
}

.button3:hover {
  background-color: #8AC5FF;
  color: white;
}

.button1 {width: 95%;}
.button3 {width: 40%;}
.button1 {border-radius: 5px;}
.button3 {border-radius: 5px;}
.button1 {border: 1px solid black;}
.button1 {transition-duration: 0.4s;}
.button3 {border: 1px solid black;}
.button1 {padding: 10px 24px;}
.button3 {padding: 10px 24px;}

.button1 {margin-top: 5px;}
.button1 {margin-bottom: 5px;}
.button3 {margin-bottom: 5px;}


* {
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

/* Style the header */
header {
  background-color: #6FB7FF;
  padding: 30px;
  text-align: left;
  font-size: 35px;
  color: white;
  column-count: 2;
}

/* Create two columns/boxes that floats next to each other */
nav {
  float: left;
  width: 30%;

  height: 600px; /* only for demonstration, should be removed */

 background: #ccc;
  padding: 20px;
font-size: 20px;
}

nav2 {
  float: left;
  width: 15%;
  height: 1070px; /* only for demonstration, should be removed */
 background: #ccc;
  padding: 20px;
font-size: 20px;
}

/* Style the list inside the menu */
nav ul {
  list-style-type: none;
  padding: 0;
}

article {
  float: left;
  padding: 20px;
  width: 70%;
  background-color: #f1f1f1;
  height: 600px; /* only for demonstration, should be removed */
}

article2 {
  float: left;
  padding: 20px;
  width: 85%;
  background-color: #f1f1f1;
  height: 170px; /* only for demonstration, should be removed */
   column-span: all;
}

article3 {
  float: left;
  padding: 20px;
  width: 85%;
  background-color: #f1f1f1;
  height: 1100px; /* only for demonstration, should be removed */
  column-count: 2
}

article4 {
  float: left;
  padding: 20px;
  width: 85%;
  background-color: #f1f1f1;
}


article5 {
  float: left;
  padding: 20px;
  width: 70%;
  background-color: #f1f1f1;   /* ohne höhe */
}

nav5 {
  float: left;
  width: 30%;
 background: #ccc;    /* ohne höhe */
  padding: 20px;
font-size: 20px;
}





/* Clear floats after the columns */
section::after {
  content: "";
  display: table;
  clear: both;
}

/* Style the footer */
footer {
  background-color: #6FB7FF;
  padding: 10px;
  text-align: center;
  color: white;

 column-count: 3;
}

/* Responsive layout - makes the two columns/boxes stack on top of each other instead of next to each other, on small screens */
@media (max-width: 2500px) {
  nav, article {
    width: 100%;
    height: auto;
  }
}

h2 {
   margin: 0.1em;
   padding: 0.1em;
}

h3 {
   margin: 0em;
   padding: 0em;
}
#rcorners1 {
  border-radius: 10px;
  background: #D5EAFF;
  color: #656161;
  padding: 10px;
  width: 300px;
  height: 100px;
  text-align: left;
   padding-left: 50px;
   margin-left: 40px;

  font-size: 12px;

}

body {
 background-color: #f1f1f1;
 }