images {
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    height: 30px; }

/* general formatting*/
p {font-family: sans-serif; font-size: 18px; line-height: 175%}

body {background-color: #f2fcfb; padding-left: 30px; padding-right: 30px}

h1 {font-family: sans-serif; text-align: center; line-height: 150%}

li {
    font-size: 18px;
}
/*table*/
table, th, td {
    border: 1px solid black;
    text-align: center;}

/* home page*/
    .left {
        float: left;
        padding: 0 20px 20px 0;}

/*Border around entire frame*/
    #left, #right {
	   background: #728c8c;
	   position: fixed;}
    #left, #right {
		  top: 0; bottom: 0;
		  width: 15px;}
		  #left { left: 0; }
		  #right { right: 0; }		

/*Image on background page*/
    #img_cont {
        display: table;
        width: 95%;
        margin: 10px auto;}

    #img_cont a {
        display: table-cell;
        text-align: center;
        width: 16%;}

    #img_cont img {
        width: 100%;
        max-width: 325px;
        border-style: solid;
        border-width: .5px;
        border-color: grey;
        padding: 2px;
        margin: 10px;}

/************NAVIGATION BAR***************/
/* Add a black background color to the top navigation */
.topnav {
  overflow: hidden;
  background-color: #383737;}

/* Style the links inside the navigation bar */
.topnav a {
  min-height: 60px;
  float: left;
  display: block;
  color: darkgrey;
  text-align: center;
  padding: 18px 20px;
  text-decoration: none;
  font-size: 17px;}

/*Change the style of the "ESPM 5295 Watershed Analysis" only*/
.topnav .navbar-brand {
   font-size: 20px;
   padding: 20px 20px;}

/* Change the color of links on hover */
.topnav a:hover {
  color: white;}

/* Add an active class to highlight the current page CHECK THIS*/
.topnav .active {
  color: white;}

/* Hide the link that should open and close the topnav on small screens */
.topnav .icon {
  display: none;}

/* When the screen is less than 600 pixels wide, hide all links, except for the first one ("Home"). Show the link that contains should open and close the topnav (.icon) */
@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;}}

/* The "responsive" class is added to the topnav with JavaScript when the user clicks on the icon. This class makes the topnav look good on small screens (display the links vertically instead of horizontally) */
@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;} 
  .topnav.responsive a {
    float: none;
    display: block;
      text-align: left;}}