<style>
 
* {box-sizing:100% ;}
body {font-family: Verdana, sans-serif;}
.mySlides {display: none;}
img {vertical-align: left;}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: center;
  margin: 0px;
}

/* Caption text */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* The dots/bullets/indicators */
.dot {
  height: 13px;
  width: 13px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active {
  background-color: #717171;
}

/* Fading animation */
.fade {
  animation-name: fade;
  animation-duration: 1.5s;
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

/* On smaller screens, decrease text size */
@media only screen and (max-width: 100%) {
  .text {font-size: 11px}
} 
    
    .bg-img {
  /* The image used */
  background-image: url("img_nature.jpg");

  min-height: 200px;

  /* Center and scale the image nicely */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;

  /* Needed to position the navbar */
  position: relative;
}

/* Position the navbar container inside the image */
.container {
  position: absolute;
  margin: 5px;
  width: 100px;
}

.sidenav {
  width: 100px;
  position: fixed;
  z-index: 1;
  top: 1px;
  left: -30px;
  background: yellowgreen;
  overflow-x: show;
  padding: 3px 0;
}

.sidenav a {
  padding: 3px 4px 0px 5px;
  text-decoration: none;
  font-size: 75%;
  color: red;
  display: block;
}

.sidenav a:hover {
  color: goldenrod;
}
@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 13px;}
}
/* The navbar */
.topnav {
  overflow: hidden;
  background-color: #333;
}

/* Navbar links */
.topnav a {
  float: right;
  color: #f2f2f2;
  text-align: center;
  padding: 4px 4px;
  text-decoration: none;
  font-size: 16px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}
        body { 
  /* The image used */
  background-image: url("I3M_masthead_B.png");

  /* Set a specific height */
  min-height: 500px; 

  /* Create the parallax scrolling effect */
  background-attachment: fixed;
  background-position: center-top;
  background-repeat: no-repeat;
  background-size: cover;
}


<!-- Container element -->
<div class="body"></div>
 .dropbtn {
  background-color: white;
  color: yellowgreen;
  padding: 70px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 100%;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

.dropdown-content a {
  color: black;
  padding: 0px 0px;
  text-decoration: none;
  display: block;
}

.dropdown-content a:hover {background-color: white}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown:hover .dropbtn {
  background-color: #3e8e41;
}
         /* unvisited link */
a:link {
  color: black;
}

/* visited link */
a:visited {
  color: green;
}

/* mouse over link */
a:hover {
  color: darkgoldenrod;
}

/* selected link */
a:active {
  color: whitesmoke;
}
    
body {

			font-family: Gotham, "Helvetica Neue", Helvetica, Arial, "sans-serif";
				font-size:17px;
			color:whitesmoke;
			
			background-image: url("I3M_masthead_B.png") ; 
			background-size:  100%; 
			background-repeat: no-repeat;
			background-attachment: top;
	
			}
      
        div-c {
			  border-radius: 5px;
border: 3px solid yellowgreen;
            box-shadow: h-offset:30px, 
                v-Offset20px, blur-radius:16px, spread-radius: 17px;
            text-align: center;
            padding:70px;
  margin-top: 36%;
  margin-bottom: 200px;
  margin-right: 5%;
  margin-left: 5%;
			padding-top: 0px;
  padding-right: 30px;
  padding-bottom: 50px;
  padding-left: 800px;
  background-color: yellowgreen;
    }


        div {
    border-radius: 9px;
    border: 3px solid yellowgreen;
            box-shadow: h-offset:30px, 
                v-Offset20px, blur-radius:16px, spread-radius: 17px;
    text-align: left;
    padding: 70px;
    margin-top: 36%;
    margin-bottom: 200px;
    margin-right: 5%;
    margin-left: 5%;
    padding-top: 0px;
    padding-right: 30px;
    padding-bottom: 50px;
    padding-left: 80px;
    background-color: yellowgreen;                      
}

    div2b {
            text-align: center;
    padding: opx;
    margin-top: 0%;
    margin-bottom: 0px;
    margin-right: 5%;
    margin-left: 5%;
    padding-top: 0px;
    padding-right: 0px;
    padding-bottom: 0px;
    padding-left: 0px;
    background-color: yellowgreen;
			width: auto%;
            height: auto%;
            background-size: 100%;
            background-repeat: no-repeat;
            background-attachment: ;
            margin-top: 1%;
            z-index: -1;
  margin-bottom: 0px;
  margin-right: 0px;
  margin-left: 0px;
        }
        
        
div7 {
			border: 0px solid white;
    font-size: 12px;
            text-align: center;
  margin-top: 0%;
  margin-bottom: 0px;
  margin-right: 0%;
  margin-left: 0%;
			padding: 0px;
  background-color: white;
           }

div8 {
			border: 0px solid white;
            font-size: 12px;
            text-align: center;
  margin-top: 0%;
  margin-bottom: 0px;
  margin-right: 0%;
  margin-left: 0%;
			padding: 0px;
  background-color: black;
           }

        body,td,th {
    font-family: Gotham, "Helvetica Neue", Helvetica, Arial, sans-serif;
}
    h1,h2 {align: center;}
  
    
    
    </style>