* {box-sizing: border-box;}

body { 
	margin: 0;
	font-family: Arial, Helvetica, sans-serif;
}

.header {
	overflow: hidden;
	background-color: aliceblue;
	padding: 20px 30px 20px 30px;
	border: 1px solid #ddd;
}

.header a {
	float: left;
	color: black;
	text-align: center;
	padding: 12px;
	text-decoration: none;
	font-size: 18px; 
	line-height: 25px;
	border-radius: 4px;
}

.header a:hover {
	background-color: #ddd;
	color: black;
}

.header a.active {
	background-color: chocolate;
	/*background-color: dodgerblue;*/
	color: white;
}

.header-right {
	float: right;
}

.footer {
	left: 0;
	bottom: 0;
	width: 100%;
	background-color: aliceblue;
	color: black;
	text-align: left;
	padding: 5px 30px 5px 30px;
	border: 1px solid #ddd;
}

.centered_txt {
	margin-left: auto;
	margin-right: auto;
	padding-left:30px; 
	padding-right:30px;
	max-width:900px;
}

table {
	border-collapse: collapse;
	border-spacing: 0;
	width: 100%;
	border: 1px solid aliceblue;
}

th, td {
	text-align: left;
	padding: 7px;
}

tr:nth-child(even) {
	background-color: aliceblue;
}

/* gallery base is for 300px wide thumbnails */
.gallery, .gallery-big {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	align-items: baseline; 
	grid-gap: 0px;
	padding-top: 25px;
	padding-bottom: 25px;
	width: 95%;
}

/* gallery base for wider thumbnails */
.gallery-big {
	grid-gap: 30px;
}

.gallery-item {
	overflow: hidden;
	padding: 0px;
}

.gallery-item:hover figure {
	transform: scale(1.02);
}

.gallery-item figure {
	filter: drop-shadow(3px 3px 3px gray);
	transition: transform 0.2s ease-in-out;
	display: block;
	margin: 10px;
}

.gallery-item figure img {
	width: 100%;
	height: auto;
	border-radius: 4px;
}

.gallery-item figure figcaption {
	background-color: whitesmoke;
	color: black;
	font-style: italic;
	padding: 0.5em 1em;
	text-align: center;
	border-radius: 4px;
}

#drop {
	filter: drop-shadow(3px 3px 3px gray);
	border-radius: 4px;
}

#drop_sizer {
	width: 100%;
	height: auto;
	filter: drop-shadow(4px 4px 4px gray);
	border-radius: 6px;
}