* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body-rd {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

/* Style the top navigation bar */
.topnav-rd {
  overflow: hidden;
  background-color: #f1f1f1;
}

/* Style the topnav links */
.topnav-rd a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

/* Change color on hover */
.topnav-rd a:hover {
  background-color: #ddd;
  color: black;
}

/* Style the content */
.content-rd {
  background-color: #008483;
  padding: 0px;
  height: 100%; /* 100% Full-height */
  overflow-y:auto;
  background-size: cover;

  width:auto;
  background-position:top center;
  background-repeat:no-repeat;
}

/* Style the footer */
.footer-rd {
  background-color: #f1f1f1;
  padding: 10px;
}

.center-rd {
display: flex;
justify-content: center;
}