grafana/public/sass/components/_slate_editor.scss

.slate-query-field {
  font-size: $font-size-base;
  font-family: $font-family-monospace;
  height: auto;
  word-break: break-word;
  // Affects only placeholder in query field. Adds scrollbar only if content is cropped.
  overflow: auto;
}

.slate-query-field__wrapper {
  position: relative;
  display: inline-block;
  padding: 6px 8px;
  min-height: $input-height;
  width: 100%;
  line-height: $line-height-base;
  color: $text-color;
  background-color: $input-bg;
  background-image: none;
  border: $input-border;
  border-radius: $border-radius;
  transition: all 0.3s;
  line-height: $input-line-height;
}

.slate-query-field__wrapper--disabled {
  background-color: inherit;
  cursor: not-allowed;
}

.slate-typeahead {
  .typeahead {
    position: relative;
    z-index: $zindex-typeahead;
    border-radius: $border-radius;
    border: $panel-border;
    max-height: calc(66vh);
    overflow-y: scroll;
    overflow-x: hidden;
    outline: none;
    list-style: none;
    background: $panel-bg;
    color: $text-color;
    box-shadow: $typeahead-shadow;
  }

  .typeahead-group__title {
    color: $text-color-weak;
    font-size: $font-size-sm;
    line-height: $line-height-base;
    padding: $space-sm;
  }

  .typeahead-item {
    height: auto;
    font-family: $font-family-monospace;
    padding: $space-sm $space-sm $space-sm $space-md;
    font-size: $font-size-sm;
    text-overflow: ellipsis;
    overflow: hidden;
    z-index: 1;
    display: block;
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.3s cubic-bezier(0.645, 0.045, 0.355, 1), border-color 0.3s cubic-bezier(0.645, 0.045, 0.355, 1),
      background 0.3s cubic-bezier(0.645, 0.045, 0.355, 1), padding 0.15s cubic-bezier(0.645, 0.045, 0.355, 1);
  }

  .typeahead-item__selected {
    background-color: $typeahead-selected-bg;

    .typeahead-item-hint {
      font-size: $font-size-xs;
      color: $text-color;
      white-space: normal;
    }
  }

  .typeahead-match {
    color: $typeahead-selected-color;
    border-bottom: 1px solid $typeahead-selected-color;
    // Undoing mark styling
    padding: inherit;
    background: inherit;
  }
}

/* SYNTAX */

.slate-query-field {
  .token.comment,
  .token.block-comment,
  .token.prolog,
  .token.doctype,
  .token.cdata {
    color: $text-color-weak;
  }

  .token.variable,
  .token.entity {
    color: $text-color;
  }

  .token.property,
  .token.tag,
  .token.constant,
  .token.symbol,
  .token.deleted {
    color: $query-red;
  }

  .token.attr-value,
  .token.selector,
  .token.string,
  .token.char,
  .token.builtin,
  .token.inserted {
    color: $query-green;
  }

  .token.boolean,
  .token.number,
  .token.operator,
  .token.url {
    color: $query-purple;
  }

  .token.function,
  .token.attr-name,
  .token.function-name,
  .token.atrule,
  .token.keyword,
  .token.class-name {
    color: $text-blue;
  }

  .token.punctuation,
  .token.regex,
  .token.important {
    color: $query-orange;
  }

  .token.important {
    font-weight: normal;
  }

  .token.bold {
    font-weight: bold;
  }

  .token.italic {
    font-style: italic;
  }

  .token.entity {
    cursor: help;
  }

  .namespace {
    opacity: 0.7;
  }
}