body,
h1,
h2,
h3,
h4,
h5,
h6,
p {
  font-weight: 400;
  margin: 0;
  padding: 0;
}

p {
  margin-bottom: 15px;
}

body {
  font: 400 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  color: #111;
  background-color: #fdfdfd;
  -webkit-text-size-adjust: 100%;
  -webkit-font-feature-settings: "kern" 1;
  -moz-font-feature-settings: "kern" 1;
  -o-font-feature-settings: "kern" 1;
  font-feature-settings: "kern" 1;
  font-kerning: normal;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

main {
  display: block;
  max-width: -webkit-calc(800px - (30px * 2));
  max-width: calc(800px - (30px * 2));
  margin-right: auto;
  margin-left: auto;
  padding: 30px;
  flex: 1;
}
@media screen and (max-width: 800px) {
  main {
    max-width: -webkit-calc(800px - (30px));
    max-width: calc(800px - (30px));
    padding-right: 15px;
    padding-left: 15px;
  }
}
main:after {
  content: "";
  display: table;
  clear: both;
}

small {
  font-size: 55%;
  font-variant: small-caps;
}

.images {
  height: 300px;
  overflow: hidden;
}
.images img {
  max-height: 98%;
}

a {
  color: #2a7ae2;
  text-decoration: none;
}
a:visited {
  color: #1756a9;
}
a:hover {
  color: #111;
  text-decoration: underline;
}

details > summary > h2 {
  display: inline-block;
}

ul {
  list-style-type: none;
  padding-inline-start: 0;
}
li {
  margin-bottom: 20px;
}
table, th, td {
  border: 1px solid black;
}