h1 {
  text-align: center;
}

.table-of-contents.open {
  background-color: #ffffff;
  border-radius: 20px;
  border-style: solid;
  border-color: #e4e5e9;
  border-width: 1px;
}

.entry-content table th {
  color: #16a34a;
}

.spoiler-box__title.js-spoiler-box-title {
  background-color: #ffffff;
  font-weight: bold;
}

.button1 {
  font-weight: bold;
}

.button2 {
  font-weight: bold;
}