xrpl-dev-portal/styles/_buttons.scss

// Button styling --------------------------------------------------------------

.btn, .content a.button, .content .btn {
  font-weight: bold;
  cursor: pointer;
  text-decoration: none;
  transition: 0.2s;
}

.content a.button {
  padding: .5rem 1rem;
  margin: 0 0.5rem;
  display: inline-block;
}

.btn.disabled,
button.disabled,
.btn[disabled="disabled"],
button[disabled="disabled"] {
  cursor: not-allowed;
}

.btn-outline-secondary,
.content a.button,
.navbar-dark .navbar-nav .nav-link.btn-outline-secondary {
  color: $white;
  border-color: $white;
  border-width: 2px;
  border-style: solid;

  &:not(:disabled):not(.disabled):hover, &:not(:disabled):not(.disabled):active {
    color: $primary;
    border-color: $primary;
    background-color: transparent;
  }
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: $white;
}

p + .readmore {
  margin-top: 12px;
}

.card-header a i {
  margin: 0 0.2em 0 0.8em;
}

.btn-primary code,
.btn-secondary code {
  color: inherit;
}

/* (Jump to) "Top" button */

.jump-to-top {
  display: none;
  position: fixed;
  bottom: 36px;
  right: 36px;
  font-weight: 700;
  z-index: 1000;
  color: white;
  background-color: transparent;

  &::after {
    content: " ↑"
  }
}