body {
  margin: 0 15px;
}
header {
  display: flex;
  background-color: #7a3f08;
  text-align: center;
  align-items: center; /* центрирование по вертикали */
  -webkit-box-shadow: 2px 5px 15px 5px chocolate;
  box-shadow: 2px 5px 15px 5px chocolate;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}
li {
  list-style: none;
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}
.nav-list,
.other-books,
.anchor-links {
  gap: 20px;
  display: flex;
}
.container {
  display: flex;
  flex-direction: column;
  margin-left: 0;
}
h1 {
  margin-top: 35px;
  padding: 5px;
  font-size: 2.2em;
  color: rgb(255, 255, 255);
}
.youtube-video {
  border-radius: 15px;
}
.default-subtitle {
  font-size: 1.2em;
  color: #7a3f08;
  text-align: center;
  margin-top: 0.5em;
}
.Gosha {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}
.external-link {
  display: inline-block;
  margin-top: 10px;
  padding: 5px 5px;
  color: #ffffff;
  font-weight: bold;
  border-radius: 5px;
  text-align: center;
  transition: background-color 0.3s;
  text-decoration: none;
  background-color: #c8c517;
}
.external-link:hover {
  transition: 0.5s;
  -webkit-box-shadow: 0px 2px 0px 7px rgba(255, 255, 255, 0.79);
  box-shadow: 0px 2px 0px 7px rgba(255, 255, 255, 0.79);
}
.anchor-links {
  margin-top: 10px;
  padding: 5px 5px;
  background-color: #d015b1;
  border-radius: 5px;
}
.anchor-links:hover {
  transition: 0.5s;
  -webkit-box-shadow: 0px 2px 0px 7px rgba(255, 255, 255, 0.79);
  box-shadow: 0px 2px 0px 7px rgba(255, 255, 255, 0.79);
}
.anchor-links a {
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
}
.anchor-list {
  display: flex;
  justify-content: center;
  gap: 20px;
}