:root {
  --text: black;
  --accent: lavender;
  --bg: AliceBlue;
  --box: white;
  --border: LightGray;
}

@media only screen and (orientation: portrait) {
  div.container {
    width: 90%;
  }

  div.scroll {
    height: 80vmax;
  }
}

body {
  font-family: "courier new", monospace;
  font-size: 18px;
  background: var(--bg);
  margin: 0;
}

section {
  border: solid 2px var(--border);
  padding: 10px 5% 10px;
  background: var(--box);
  margin: 10px;
}
.container {
  width: 60%;
  margin: 1em auto;
  max-width: 100%;
  display: flex;
  flex-wrap: wrap;
  margin: auto;
  align-items: center;
}
.scroll {
  height: 70vh;
  overflow-y:auto;
  scrollbar-width: none;
}
.columns {
  flex-direction: column;
}
.text-box {
  border: solid;
  padding: 10px 5% 10px;
  background: white;
  margin: 5px;
  flex-basis: auto;
}
.center {
  display: block;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}
.in {
  margin: -5px;
  z-index: 1;
}
.out {
  margin: 20px;
}
.fit {
    flex: 1 1 100px;
    min-width: 100px;
}
.fill {
  flex: 1 1 100%;
}
.grow {
  flex: 3 1 100px;
}
.shrink {
  flex: 1 3;
  min-width: 100px;
}

.small {
  flex: 1 1 25%;
  min-width: 100px;
}

.large {
  flex: 1 1 75%;
}

.half {
  flex: 1 1 50%;
}

p {
  line-height: 1.25em;
}
.caption {
  margin-top: 0;
  margin-bottom: 0;
  font-size: 0.9em;
  font-style: italic;
  color: gray;
}

.hide {
    display: none;
}

.crop {
  max-width: 100%; 
  max-height: 100%;
  margin: auto; 
}

#border {
  margin: 10px;
  border: ridge 5px var(--border);
}

.gallery {
  height: 1500px;
  margin: 10px;
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  align-content: center;
}


.gallery img {
  width: 40%;
  margin: 2px;
}

.gallery img:hover {
    border:solid 2px;
    border-color: dodgerblue;
}

.gallery img:hover + .hide {
    display: block;
    text-align: center;
}

nav{
  z-index: 99;
  position: sticky;
  top: 0;
  background-color: lavender;
  padding: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;

  border-bottom: ridge;
  border-color: var(--border);
  border-width: 4px;
}

.navlink{
  background-color: var(--box);
  border: solid 1px var(--border);
  display: block;
  padding: 5px;
  margin: 8px 5px 8px;
  text-align: center;
  flex: auto;
}

iframe {
  display: inline-block;
  position: relative;
  margin: 5px;
  width: 100%;
  max-width: 100%;
  height: 100%;
  border: solid 2px var(--border);
}

details {
  margin: 5px;
}

summary {
  margin: 2px;
}

mark {
  background-color: lemonchiffon;
}

#link {
  text-align: center;
  margin-top: 5px;
  margin-bottom: 5px;
}