html,
body {
  height: 100%;
  margin: 0;
  text-align: center;
}
body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
}
header, footer {
  background-color: #99334c;
  padding: 1rem;
  color: white;
  min-height: 10px;
}
header a, footer a { color: white; }
main {
  overflow-y: auto;
  padding: 1rem;
  min-height: 0;
}
#container {
  display: grid;
  grid-template-columns: 1fr 200px;
  height: 100%;
  min-height: 0;
}
main {
  text-align: left;
}
aside {
  background-color: #ffffcc;
  padding: 1rem;
}
.flex-row {
  display: flex; flex-direction: row; flex-wrap: wrap; gap: 1rem;  
}
aside ul {
  list-style: none; padding: 0; margin: 0;
}

.polaroids figure {
  width: 300px;
  margin: 12px;
  padding: 12px;
  border: 1px solid rgb(30, 30, 30);
  box-shadow: 6px 6px 2px rgb(215, 215, 215);
}
.polaroids figure img {
  width: 100%;
  margin-bottom: 12px;
  border: 1px solid rgb(90, 90, 90);
}
.polaroids figure figcaption {
  font-size: .85rem;
  text-align: center;
}
.polaroids {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}

@media only screen and (max-width: 800px) {
  #container {
    grid-template-columns: 1fr;
  }
  aside {
    display: none;
  }
}