AdminLTE/scss/dark/bootstrap/_buttons.scss

// Base styles

.btn {
  color: $body-color-alt;
  background-color: transparent;
  border: $btn-border-width solid transparent;

  &:hover {
    color: $body-color-alt;
  }

  .btn-check:focus + &,
  &:focus {
    box-shadow: $btn-focus-box-shadow-alt;
  }

  .btn-check:checked + &,
  .btn-check:active + &,
  &:active,
  &.active {
    @include box-shadow($btn-active-box-shadow-alt);

    &:focus {
      @include box-shadow($btn-focus-box-shadow-alt, $btn-active-box-shadow-alt);
    }
  }

  &:disabled,
  &.disabled,
  fieldset:disabled & {
    opacity: $btn-disabled-opacity-alt;
    @include box-shadow(none);
  }
}


// Alternate buttons

@each $color, $value in $theme-colors-alt {
  .btn-#{$color} {
    @include button-variant-alt($value, $value);
  }
}

@each $color, $value in $theme-colors-alt {
  .btn-outline-#{$color} {
    @include button-outline-variant-alt($value);
  }
}

// Link buttons

// Make a button look and behave like a link
.btn-link {
  color: $btn-link-color-alt;

  &:hover {
    color: $btn-link-hover-color-alt;
  }

  &:disabled,
  &.disabled {
    color: $btn-link-disabled-color-alt;
  }
}