body {
  width: 700px;
}

button.tour {
  visibility: hidden;
}

article.main {
  width: 700px;
  background-color: white;
}

article.main * {
  color: black;
}

article.main h1 {
  margin-bottom: 40px;
}

article.main fr {
  color: #0163b3;
  font-style: italic;
  cursor: pointer;
}

article.main fr u {
  color: #0163b3;
}

article.main es {
  color: #03970f;
  font-style: italic;
  cursor: pointer;
}

article.main es u {
  color: #03970f;
}

article.main zh {
  color: #c50101;
  cursor: pointer;
}

article.main zh u {
  color: #c50101;
}

p {
  text-indent: 40px;
}

h3 {
  margin-top: 60px;
}

aud {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  cursor: pointer;
}

aud.fr {
  text-decoration-color: #0181eb;
}

aud.es {
  text-decoration-color: #03970f;
}

aud.zh {
  text-decoration-color: #c50101;
}

table {
  margin-left: auto;
  margin-right: auto;
}

table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
  font-size: 20px;
}

table.reg-no-border, table.reg-no-border th, table.reg-no-border td {
  border: none;
}

.merge-left {
  border-left: none;
}

.merge-right {
  border-right: none;
}

th, td {
  padding: 4px;
}

table.reg th, table.reg td {
  width: 200px;
}

table.reg-no-border th, table.reg-no-border td {
  width: 300px;
}

article.main ex {
  margin-left: 40px;
  margin-right: 40px;
  font-size: 20px;
  display: block;
}

article.main red {
  color: #de0404;
}

.top-dist {
  margin-top: 60px;
}

.extra-indent {
  margin-left: 84px;
}

div.bottom-nav {
  margin-left: 0;
  margin-top: 90px;
  display: flex;
  justify-content: space-between;
}

div.bottom-nav a {
  font-size: 20px;
  color: #1377c9;
  text-decoration-color: #1377c9;
  text-decoration-thickness: 1px;
}

div.img {
  display: flex;
  width: 600px;
  flex-wrap: wrap;
  margin-left: auto;
  margin-right: auto;
}

div.img img {
  width: 200px;
  height: 200px;
}