.entry-content blockquote:not(.wpremark).wp-block-quote {
  background-color: #2b2b2b;
  border-radius: 5px;
}

h1 {
  text-align: center;
  color: #ffffff;
}

h2 {
  text-align: center;
  color: #ffffff;
}

h3 {
  text-align: center;
  color: #ffffff;
}

.table-of-contents.open {
  background-color: #2b2b2b;
  border-radius: 5px;
  color: #ffffff;
}

.button1 {
  font-weight: bold;
}

.button2 {
  font-weight: bold;
}