:root{
	
	/*basics*/
	--padding: 8px;
	--border: 2px solid darkolivegreen;
	--bodyfont: Tahoma, sans-serif;
	--fontsize: 14px;
	
	/*body*/
	--bodybg: powderblue;
	
	/*main*/
	--mainbg: antiquewhite;
	
	/*navbar*/
	--navbg: darkolivegreen;
	--navhighlight: darkgoldenrod;
	--navlinks: antiquewhite;
	--navhoverlink: darkslategray;
	--navhoverbg: moccasin;
	
	/*email form*/
	
	
	/*footer*/
	--footerbg: antiquewhite;
	
	
}

*{
	padding:none;
	margin: none;
	box-sizing: border-box;
}


body{
	max-width: 1200px;
	background-color: var(--bodybg);
	font-family: var(--bodyfont);
	font-size: var(--fontsize);
	width: 90%;
	margin: auto
}

#headerimg {
  width: 100%;
  height: auto;
}


/* Add a black background color to the top navigation */
.topnav {
  background-color: var(--navbg);
  overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
  float: left;
  display: block;
  color: var(--navlinks);
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
  background-color: var(--navhoverlink);
  color: var(--navhoverbg);
}


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

.links a[aria-current="page"] {
  font-weight: 700;
}

main{
	background-color: var(--mainbg);
	border: var(--border);
	padding: var(--padding);
	margin-top: 10px;
	margin-bottom: 10px;
}


.gallery{
	display: flex;
	flex-wrap: wrap;
	width: 100%;
	margin: auto;
	text-align: center;
}

.gallery-item{
	max-width: 25%;
}

form{
	padding: 8px;
}

input{
	border: var(--border);
	padding: 3px;
}

input[type=reset]{
	padding: 5px;
}

input[type=submit]{
	padding: 5px;
}


footer{
	text-align: center;
	border: var(--border);
	padding: var(--padding);
	background-color: var(--footerbg);
}

@media screen and (max-width: 900px) {

  .gallery-item{
	  max-width: 33.3%;
  }
}


@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
	float: right;
	display: block;
  }
  
  body{
	  width: 100%;
  }
  
  .topnav.responsive {position: relative;}
  .topnav.responsive a.icon {
	position: absolute;
	right: 0;
	top: 0;
  }
  .topnav.responsive a {
	float: none;
	display: block;
	text-align: left;
  }
  
  .gallery-item{
		max-width: 50%;
	}
  
}