body {
  background-color: black;
     }
	 
.header {
padding: 10px 10px 10px 10px;
max-width: 100%
}

.footer {
	background-color: black;
	text-align: center
	font-color: blue;
	padding: 10px;
}

.mainpage {
padding: 20px;
margin: 10px;
border: 2px;
background-color: white;
border-radius: 30px;
font-size: 18px;
color: blue;
text-align: justify;
}

.mainpage_black {
padding: 20px;
margin: 10px;
border: 2px;
background-color: black;
border-radius: 30px;
font-size: 18px;
color: #ffe596;
text-align: justify;
}
 
.center {
display: block;
margin-left: auto;
margin-right: auto;
width: 100%;
}

.textbox {
	text-align: center;
}

.textbox_black {
	text_align: center;
	background-color: black;
    text-align: justify;
	color: #ffe596;
}	
	
div {
    clear: both;
	font-family: 'Open Sans', sans-serif;
	}
	
h2 {text-align: center;
     color: #ffe596;
	 font-size: 18px;
}	

h3 {text-align: center;
     color: #143970;
	 font-size: 16px;
	 text-decoration: none;
}
	
	
table {
	text align: center;
	font-size: 12px;
    border: 1px color silver;
	padding: 15px;
	margin-left: auto;
	margin-right: auto;
}

th, td {
	text-align: center;
	    border: 1px color #143970;
		padding: 8px;
}

ul.topnav {
  list-style-type: none;
  text-align: center;
  font-family: 'Open Sans', sans-serif;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #000;    /* bg col of nav bar */

  border-radius: 0px;
    border: 0px ; #777
}

ul.topnav li {
display: inline;

}

ul.topnav li a {
  display: inline-block;
  color: #eee;    /* text color on the nav bar */
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.imgright {

	float: right;
	
}

.imgleft {
	float: left;
}

ul.topnav li a:hover:not(.active) {background-color: #143970;}  /* color of the mouse hover block */

ul.topnav li a.active {background-color: #143970; color: #ffe596;}     /*  color of the active block */

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

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