body{
    font-family: Roboto, "open sans", "Microsoft JhengHei", Verdana, Arial, sans-serif;
    font-size: 18px;
}

h1{
	text-align: center;
	/*color: forestgreen;*/
	margin: 30px 0 50 px;
}

.gallery{
	margin: 10px 50px;
}
.gallery img{
	width: 450px;
	padding: 5px;
	transition: 1s;
}

.gallery img:hover{
	transform: scale(1.1);
}
.itext{
	font-size: 20px;
}

.equal {
  display: flex;
  display: -webkit-flex;
  flex-wrap: wrap;
  -webkit-flex-wrap: wrap;
}

.equal-box {
  flex: 150px auto;
  display: flex;
}

.photoArrowOverlay {
  opacity: 1;
  filter: drop-shadow(3px 5px 2px rgb(0 0 0 / 0.4));
  animation: 2s opacity infinite;
}

@keyframes opacity {
  20% {opacity: 1}
  30% {opacity: 0.2}
  40% {opacity: 1}
  50% {opacity: 0.2}
  60% {opacity: 1}
}