nav {
  float: left;
  width: 100%;
  background: #ed6a1d;
  font-size: 16px;
  padding-left: 30%;
}

nav ul {
  margin: 0;
  padding: 0;
}

nav a {
  display: block;
  color: #fff;
  text-decoration: none;
}

nav ul li {
  position: relative;
  float: left;
  list-style: none;
  color: #fff;
  transition: 0.5s;
}

nav ul li a {
  padding: 20px;
}

nav ul > li.submenu > a:after {
  position: relative;
  float: right;
  content: '';
  margin-left: 10px;
  margin-top: 5px;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid #fff;
  border-bottom: 5px solid transparent;
}

nav ul ul li.submenu > a:after {
  margin-left: auto;
  margin-right: -10px;
  border-left: 5px solid #fff;
  border-right: 5px solid transparent;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

nav ul li:hover {
  background: #ed6a1d;
}

nav ul ul {
  position: absolute;
  top: -9999px;
  left: -9999px;
  background: #333;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
  z-index: 1;
}

nav ul ul li {
  float: none;
  width: 200px;
  border-bottom: 1px solid #555;
}

nav ul ul li a {
  padding: 10px 20px;
}

nav ul ul li:last-child {
  border-bottom: none;
}

nav ul li:hover > ul {
  top: 100%;
  left: 0;
}

nav ul ul li:hover > ul {
  top: 0;
  left: 200px;
}


#header {
  background-color: #555;
  height: 70px;
  padding: 20px;
}

.header_h2 {
  color: #555;
  font-size: 35px;
}

th {
   background-color: #ed6a1d;
   font-size: 25px;
}
#page {
  font-family: Arial;
}

.button {
    background-color: #555;
    color: #FFFFFF;
    text-decoration: none;
    font-weight: bold;
    padding: 5px;
    
   
}

.button:hover {
  background-color: #ed6a1d; 
}

#overlay {
  position: fixed; /* Sit on top of the page content */
  display: none; /* Hidden by default */
  width: 100%; /* Full width (cover the whole page) */
  height: 100%; /* Full height (cover the whole page) */
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.5); /* Black background with opacity */
  z-index: 2; /* Specify a stack order in case you're using a different order for other elements */
  cursor: pointer; /* Add a pointer on hover */
}