body {
  background: #f8f7f5;
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 20px;
  color: #000000;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  font-family: 'Courier New', Courier, monospace;
}

h1 {
  font-size: 48px;
  font-weight: normal;
  letter-spacing: 2px;
  text-align: center;
  margin: 10px auto;
  line-height: 1.2;
  word-break: break-word;
}

h2 {
  font-size: 40px;
  font-weight: bold;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 0;
}

h3 {
  font-size: 28px;
  font-weight: bold;
  margin-top: 20px;
  text-align: center;
}

h4 {
  font-size: 20px;
  font-weight: normal;
  margin-top: 20px;
  text-align: center;
}

a {
  color: #000000;
  text-decoration: underline;
}

a:hover {
  color: #2b2b2b;
}

.titlebox, .mainbox {
  margin: auto;
  max-width: 650px;
  padding: 15px;
  border: 3px dashed #f8f7f5;
  text-align: center;
}

.mainbox {
  margin-bottom: 20px;
}

.th, .td {
  padding: 10px;
}

.videos {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 30px auto;
  width: 100%;
  max-width: 900px;
  padding: 0 10px;
}

.videos iframe {
  width: 100%;
  height: 315px;
  border: none;
}