.topnav {width: 100%; display: inline-block; text-align: center; padding: 0 0 0 0; background: linear-gradient(to bottom, #566573 0%, #212F3C 100%); margin-left: 0px; margin-bottom: 5px;}
.topnav a {display: inline-block; padding: 20px 15px; text-decoration: none; color: white; text-align: center;}
.topnav a:hover:not(.active) {background-color: #566573; color: white; text-align: center;}

h2 {font-size: 19px; margin-left: 50px;}

#myBtn {display: none; position: fixed; bottom: 20px; right: 30px; z-index: 99; font-size: 18px; border: none; outline: none; background-color: #212f3c; color: white; cursor: pointer; padding: 15px; border-radius: 4px;}
#myBtn:hover {background-color: black;}

body {
font-family:Arial; font-size: 16px; text-align: justify; line-height: 30px; background-color: white;
}