* {
  box-sizing: border-box;
}
html {
  font-size: 16px; /* Set the root font size */
  height: 100vh;
  width: 100vw;
  margin: 0;
  padding: 0;
}
body {
  height: 100vh;
  margin: 0;
  padding: 0;
  background-color: #e6e6e6;}
h1 {
  color: #333333;
  margin: 0 15px 10px 15px;
  font-size: 2rem;
  font-family: "Consolas", monaco, monospace;
  text-align: center;}
h4 {
  color: #454545;
  margin: 0 15px 10px 15px;
  font-size: 1.2rem;
  font-family: "Consolas", monaco, monospace;
  text-align: center;}
p {
  color: #666666;
  margin:0;
  padding: 10px;
  font-family: "Consolas", monaco, monospace;
  font-size: 1rem;
  line-height: 1.7;
}
.caption {
  margin: 0 30px 5px;
  color: #999999;
  font-size: .9rem;
  text-align: center;
  font-family: "Consolas", monaco, monospace;
}
div {    
  background-color: White;
  padding: 15px;
  margin: 20px auto;
  box-sizing: border-box;
  font-family: "Consolas", monaco, monospace;
   }
.header {
  align-items: center;
  max-width: 900px; }
   
.menu {
  display: flex;
  max-width: 900px;
  padding: -15px;
  margin: 0px auto;
  background-color: transparent;
   }
.logo {
  margin:auto;
  max-width: 300px;
  height:auto;
}
.menubutton {
  width: 25%;
  padding: 0;
  margin: 0;
  text-align: center;
  color: #666666;
  font-family: "Consolas", monaco, monospace;
  font-size: 1rem;
  text-decoration: none;
   }
.menubutton:hover {
    color: black;
}
.overlay {
    display:none;
    background-color: rgb(153 153 153 / 60%);
    width:100vw;
    height:100vh;
    position: fixed;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
}
.overlay img {
    opacity:1;
    width: 100%;
    height: 100%;
    object-fit: contain;
    margin: auto;
    padding: 15px;
}
.overlay div {
    opacity:1;
    height: 100%;
    width: 20%;
    margin: 0;
    padding: 0;
    align-items: flex-end;
}
.content {
    max-width: 900px;
}
.container {
    max-width: 900px;
  display: flex;
  flex-wrap: wrap;
  padding: 0;
  }
.a {width: 100%;
    padding:5px;}
.b {
    padding: 5px;
    width: 33.3%}
.gallery-item {
    margin:0;
    padding:0;
    width: 33.3%;
    aspect-ratio: 1 / 1;
    justify-content: center;
    align-items: center; 
    position:relative;
}
.gallery-item img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    position:absolute;
    padding: 10px;
    margin:0;
}
.gallery-item button {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-color: white;
    align-content: center;
    text-align: center;
    position:absolute;
    margin:0;
    padding: 10px;
    opacity: 0;
    border:0;
}

.gallery-item button:hover {
    opacity:.6;
}
/* Use a media query to add a break point at 800px: */
@media screen and (max-width: 800px) {
  .gallery-item {
    width: 100%;
  }
}