body {
margin-left: 180px;
margin-right: 180px;
margin-top: -15px;
margin-bottom: 0;
line-height: 1.5 ;
}

ul.topnav {
  list-style-type: none;
  margin-left: 0px;
  margin-right: 0px;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}

ul.topnav li {float: left;}

ul.topnav li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  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;}
}

input[type=text], select, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  margin-top: 6px;
  margin-bottom: 16px;
  resize: vertical;
}

input[type=submit] {
  background-color: #4CAF50;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

input[type=submit]:hover {
  background-color: #45a049;
}

.container {
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 20px;
}