docs/5.3/examples/cheatsheet/cheatsheet.css

body {
  scroll-behavior: smooth;
}

/**
 * Bootstrap "Journal code" icon
 * @link https://icons.getbootstrap.com/icons/journal-code/
 */
.bd-heading a::before {
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: .25rem;
  content: "";
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23999' viewBox='0 0 16 16'%3E%3Cpath d='M4 1h8a2 2 0 0 1 2 2v10a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2h1a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V3a1 1 0 0 0-1-1H4a1 1 0 0 0-1 1H2a2 2 0 0 1 2-2z'/%3E%3Cpath d='M2 5v-.5a.5.5 0 0 1 1 0V5h.5a.5.5 0 0 1 0 1h-2a.5.5 0 0 1 0-1H2zm0 3v-.5a.5.5 0 0 1 1 0V8h.5a.5.5 0 0 1 0 1h-2a.5.5 0 0 1 0-1H2zm0 3v-.5a.5.5 0 0 1 1 0v.5h.5a.5.5 0 0 1 0 1h-2a.5.5 0 0 1 0-1H2z'/%3E%3Cpath fill-rule='evenodd' d='M8.646 5.646a.5.5 0 0 1 .708 0l2 2a.5.5 0 0 1 0 .708l-2 2a.5.5 0 0 1-.708-.708L10.293 8 8.646 6.354a.5.5 0 0 1 0-.708zm-1.292 0a.5.5 0 0 0-.708 0l-2 2a.5.5 0 0 0 0 .708l2 2a.5.5 0 0 0 .708-.708L5.707 8l1.647-1.646a.5.5 0 0 0 0-.708z'/%3E%3C/svg%3E");
  background-size: 1em;
}

/* stylelint-disable-next-line selector-max-universal */
.bd-heading + div > * + * {
  margin-top: 3rem;
}

/* Table of contents */
.bd-aside a {
  padding: .1875rem .5rem;
  margin-top: .125rem;
  margin-left: .3125rem;
  color: var(--bs-body-color);
}

.bd-aside a:hover,
.bd-aside a:focus {
  color: var(--bs-body-color);
  background-color: rgba(121, 82, 179, .1);
}

.bd-aside .active {
  font-weight: 600;
  color: var(--bs-body-color);
}

.bd-aside .btn {
  padding: .25rem .5rem;
  font-weight: 600;
  color: var(--bs-body-color);
}

.bd-aside .btn:hover,
.bd-aside .btn:focus {
  color: var(--bs-body-color);
  background-color: rgba(121, 82, 179, .1);
}

.bd-aside .btn:focus {
  box-shadow: 0 0 0 1px rgba(121, 82, 179, .7);
}

.bd-aside .btn::before {
  width: 1.25em;
  line-height: 0;
  content: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23ccc' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3e%3c/svg%3e");
  transition: transform .35s ease;

  /* rtl:raw:
  transform: rotate(180deg) translateX(-2px);
  */
  transform-origin: .5em 50%;
}

.bd-aside .btn[aria-expanded="true"]::before {
  transform: rotate(90deg)/* rtl:ignore */;
}


/* Examples */
.scrollspy-example {
  height: 200px;
}

[id="modal"] .bd-example .btn,
[id="buttons"] .bd-example .btn,
[id="tooltips"] .bd-example .btn,
[id="popovers"] .bd-example .btn,
[id="dropdowns"] .bd-example .btn-group,
[id="dropdowns"] .bd-example .dropdown,
[id="dropdowns"] .bd-example .dropup,
[id="dropdowns"] .bd-example .dropend,
[id="dropdowns"] .bd-example .dropstart {
  margin: 0 1rem 1rem 0;
}

/* Layout */
@media (min-width: 1200px) {
  body {
    display: grid;
    grid-template-rows: auto;
    grid-template-columns: 1fr 4fr 1fr;
    gap: 1rem;
  }

  .bd-header {
    position: fixed;
    top: 0;
    /* rtl:begin:ignore */
    right: 0;
    left: 0;
    /* rtl:end:ignore */
    z-index: 1030;
    grid-column: 1 / span 3;
  }

  .bd-aside,
  .bd-cheatsheet {
    padding-top: 4rem;
  }

  /**
   * 1. Too bad only Firefox supports subgrids ATM
   */
  .bd-cheatsheet,
  .bd-cheatsheet section,
  .bd-cheatsheet article {
    display: inherit; /* 1 */
    grid-template-rows: auto;
    grid-template-columns: 1fr 4fr;
    grid-column: 1 / span 2;
    gap: inherit; /* 1 */
  }

  .bd-aside {
    grid-area: 1 / 3;
    scroll-margin-top: 4rem;
  }

  .bd-cheatsheet section,
  .bd-cheatsheet section > h2 {
    top: 2rem;
    scroll-margin-top: 2rem;
  }

  .bd-cheatsheet section > h2::before {
    position: absolute;
    /* rtl:begin:ignore */
    top: 0;
    right: 0;
    bottom: -2rem;
    left: 0;
    /* rtl:end:ignore */
    z-index: -1;
    content: "";
  }

  .bd-cheatsheet article,
  .bd-cheatsheet .bd-heading {
    top: 8rem;
    scroll-margin-top: 8rem;
  }

  .bd-cheatsheet .bd-heading {
    z-index: 1;
  }
}