.platform-select {
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  padding: 6px 0 6px 0;
  background-color: #fff;
}
.platform-select > a {
  margin-right: 5px;
  padding: 8px;
  border: 1px solid var(--blue-color);
  cursor: pointer;
}
.platform-select > a.active {
  background-color: var(--blue-color);
  color: #fff;
}
.platform-select > a:hover {
  box-shadow: 2px 2px 10px var(--blue-color);
}
.sticky {
  position: fixed;
  top: 0;
  width: 100%;
  border-bottom: 1px solid var(--blue-color);
}
.sticky + .container {
  padding-top: 60px;
}
.container .bookmark {
  scroll-margin-top: 35px;
}
.bookmark h2 {
  text-transform: uppercase;
  font-size: medium;
  font-weight: 400;
  color: var(--text-color);
  border-bottom: 1px solid var(--text-color);
  margin: 20px 0;
}
.explain-section .button {
  align-self: center;
  padding: 10px;
  margin-bottom: 20px;
  color: #fff;
  background-color: var(--blue-color);
}
.explain-section .button:hover {
  box-shadow: 2px 2px 10px var(--blue-color);
}
.bookmark .explain-section img {
  max-width: fit-content;
}
.bookmark .explain-section {
  min-height: 66vh;
}
.bookmark .explain-section .hide {
  display: none;
  min-height: 0;
}
.bookmark h2.minimized {
  border-bottom: 1px solid var(--blue-color);
  color: var(--blue-color);
  cursor: pointer;
}
.bookmark h2.minimized:hover {
  background-color: var(--blue-color2);
  /* box-shadow: 2px 2px 10px var(--blue-color); */
}

@media screen and (min-width: 500px) {
  .bookmark h2 {
    font-size: larger;
  }
}