body {margin: 0;}
section, article, header, footer, nav, aside, hgroup
{
    display: block;
    margin-top: 20px;
}

.header,
.footer
{
    background-color: #6f7e58;
    color: white;
    padding: 15px;
}

.section::after
{
    content: "";
    clear: both;
    display: table;
}

/* ======== menu ================ */

ul.topnav {
    list-style-type: none;
    margin: 0;
    margin-top: 10px;
    margin-bottom: 10px;
    padding: 0;
    overflow: hidden;
    background-color: #6f7e58;
    border-top: 4px solid #e7e7e7;
    border-bottom: 4px solid #e7e7e7;
}

ul.topnav li {float: left;}

ul.topnav li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 46px;
    text-decoration: none;
}

ul.topnav li a:hover:not(.active) {background-color: #111;}

ul.topnav li a.active {background-color: #4CAF50;}

ul.topnav li.right {float: right;}

@media screen and (max-width: 600px){
    ul.topnav li.right, 
    ul.topnav li {float: none;}
}

 /* The alert message box */
.covid_alert {
  padding-left: 40px;
  padding-right: 40px;
  padding-top: 20px;
  padding-bottom: 20px;
  background-color: #f45346; /* Red */
  color: white;
  margin-bottom: 40px;
  border: 1px solid #444444;
  border-radius: 20px;

}

/* The close button */
.closebtn {
  margin-left: 15px;
  color: white;
  font-weight: bold;
  float: right;
  font-size: 22px;
  line-height: 20px;
  cursor: pointer;
  transition: 0.3s;
}

/* When moving the mouse over the close button */
.closebtn:hover {
  color: black;
}