html{
  /*Set some global colors here for quick re-coloring of stuff!*/
  --bg-color:  #67CEEF;
  --darker-color: black;
  --lighter-color:  #D7ADE8;
  --accent-color: white;
  

  --sidebar-width:0px;
  background-color: #67CEEF;
  background-image: #5889CC;
  width: 100%;
  min-height: 100vh;
  position: relative;
}

.margarine-regular {
  font-family: "Margarine", sans-serif;
  font-weight: 400;
  font-style: normal;
}

h1 {
    font-family: "Margarine", sans-serif;
}
  
html, body, div, span, applet, object, iframe,
h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, img, ins, kbd, q, s, samp,
small, strike, sub, sup, tt, var, u, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
  font: inherit;

	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
	color: #FE3406;
	background-color: #67CEEF;
}
body {
	line-height: 1.3;
	background-color: url('bird.gif');
	text-align: center;
	margin:0px 0px 0px;
}
ol, ul {
	list-style: none;
	list-style-type: square;
}

h1 {
	width: calc(100% - 20px);
	font-size: 3em;
	font-weight: bold;
	padding: 25px 10px 10px;
	color: #340000;
}
h1 img{
	width: 100%;
	max-width:720px;
}

h2{
	font-size: 2em;
	font-weight:bold;
	padding: 10px 8px 10px;
}

.boxgallery{
	margin: auto;
	padding:15px 30px 30px;
	max-width: 100%;
	display: flex;
	flex-flow: row-reverse wrap-reverse;
	justify-content: center;
	background-color: #9AE95C;
}

.box{
	display: block;
	position: relative;
	min-width: 300px;
	max-width: 400px;
	min-height: 300px;
	margin: 5px;
	flex-grow: 1;
	background-color: var(--accent-color);
	background-position: center;
	background-size:cover;
	border: 4px solid var(--accent-color);
}

.boxHover{
	position: absolute;
	top: 0;
	bottom:0;
	padding: 15px 0px 30px;
	width: 100%;
	opacity: 0;
	transition: opacity 0.6s ease;
	display:flex;
	flex-flow: column nowrap;
	overflow: hidden;
}

.boxHover:hover{
	opacity: 1;
	background: grey;
	background: rgba(0, 0, 0, 0.5);
	transition: opacity 0.6s;
}

.box a, .box p{
	display: inline-block;
	width: 90%;
	margin:auto;
	color:white;
	font-size: 130%;
	opacity: 0;
	transition: opacity 0.4s;
}

.boxHover:hover a, .boxHover:hover p{
	opacity: 1;
}

.content{
	background-color: white;
	border: 4px solid white;
	margin: auto;
	margin-bottom: 15px;
	text-align: left;
	max-width: 1300px;
}

.flex-box {
    display:flex;
    flex-wrap:wrap;
    margin: -1em;
	align-items: flex-start;
}

.flex-box section {
	margin: 1em;
	}

.full { flex: 1 1 100%;}
.half { flex: 1 1 calc(50% - 2em); }
.third { flex: 1 1 calc(33% - 2em); }
.twothird { flex: 1 1 calc(66% - 2em); }
.quarter { flex: 1 1 calc(25% - 2em); }
.threequarter { flex: 1 1 calc(75% - 2em); }
<style>
  .fa {
    padding: 10px;
    font-size: 20px;
    width: 20px;
    text-align: center;
    text-decoration: none;
    margin: 5px 2px;
    border-radius: 50%; /* Makes the buttons round */
  }
  .fa-facebook { background: #3B5998; color: white; }
  .fa-twitter { background: #55ACEE; color: white; }
  .fa-instagram { background: #C32AA3; color: white; }
</style>