base.css

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/
.jp-DocumentSearch-input {
  border: none;
  outline: none;
  font-size: var(--jp-ui-font-size1);
  background-color: var(--jp-layout-color0);
}

.jp-DocumentSearch-overlay {
  position: absolute;
  background-color: var(--jp-toolbar-background);
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  border-left: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  top: 0;
  right: 0;
  z-index: 7;
  width: 405px;
  padding: 2px;
  font-size: var(--jp-ui-font-size1);
}

.jp-DocumentSearch-overlay button {
  background-color: var(--jp-toolbar-background);
  outline: 0;
}

.jp-DocumentSearch-overlay-row {
  display: flex;
  align-items: center;
  margin-bottom: 2px;
}

.jp-DocumentSearch-overlay * {
  color: var(--jp-ui-font-color0);
  background-position: center;
}

.jp-DocumentSearch-button-content {
  display: inline-block;
  cursor: pointer;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
}

.jp-DocumentSearch-input-wrapper {
  border: var(--jp-border-width) solid var(--jp-border-color0);
  display: flex;
  background-color: var(--jp-layout-color0);
  margin: 2px;
}

.jp-DocumentSearch-focused-input {
  border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
}

.jp-DocumentSearch-input-wrapper * {
  background-color: var(--jp-layout-color0);
}

.jp-DocumentSearch-toggle-wrapper,
.jp-DocumentSearch-button-wrapper {
  all: initial;
  overflow: hidden;
  display: inline-block;
  border: none;
  box-sizing: border-box;
  background-repeat: no-repeat;
}

.jp-DocumentSearch-toggle-wrapper {
  width: 14px;
  height: 14px;
}

.jp-DocumentSearch-button-wrapper {
  width: 20px;
  height: 20px;
}

.jp-DocumentSearch-toggle-wrapper:focus,
.jp-DocumentSearch-button-wrapper:focus {
  outline: var(--jp-border-width) solid
    var(--jp-cell-editor-active-border-color);
  outline-offset: -1px;
}

.jp-DocumentSearch-toggle-wrapper,
.jp-DocumentSearch-button-wrapper,
.jp-DocumentSearch-button-content:focus {
  outline: none;
}

.jp-DocumentSearch-toggle-placeholder {
  width: 5px;
}

.jp-DocumentSearch-input-button:before {
  display: block;
  padding-top: 100%;
}

.jp-DocumentSearch-input-button-off {
  opacity: var(--jp-search-toggle-off-opacity);
}

.jp-DocumentSearch-input-button-off:hover {
  opacity: var(--jp-search-toggle-hover-opacity);
}

.jp-DocumentSearch-input-button-on {
  opacity: var(--jp-search-toggle-on-opacity);
}

.jp-DocumentSearch-index-counter {
  padding-left: 10px;
  padding-right: 10px;
  user-select: none;
  min-width: 43px;
  display: inline-block;
}

.jp-DocumentSearch-up-down-wrapper {
  display: inline-block;
  padding-right: 2px;
  margin-left: auto;
}

.jp-DocumentSearch-spacer {
  margin-left: auto;
}

.jp-DocumentSearch-up-down-wrapper button {
  outline: 0;
  border: none;
  width: 20px;
  height: 20px;
  background-repeat: no-repeat;
  background-position: center;
  vertical-align: middle;
  margin: 1px 7px 2px;
}

.jp-DocumentSearch-up-down-button {
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-up-down-button:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-up-down-button:active {
  background-color: var(--jp-layout-color3);
}

.jp-DocumentSearch-ellipses-button {
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-ellipses-button:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-ellipses-button-enabled {
  background-color: var(--jp-layout-color3);
}

.jp-DocumentSearch-ellipses-button-enabled:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-search-options {
  padding: 0 8px;
  margin-left: 3px;
  width: 200px;
  display: block;
}
.jp-DocumentSearch-search-options-disabled {
  color: var(--jp-ui-font-color2);
}

.jp-DocumentSearch-search-options input {
  float: right;
}

.jp-DocumentSearch-regex-error {
  color: var(--jp-error-color0);
}

.jp-DocumentSearch-replace-entry {
  border: var(--jp-border-width) solid var(--jp-border-color0);
  display: flex;
  background-color: var(--jp-layout-color0);
  font-size: var(--jp-ui-font-size1);
  width: 186px;
  margin: 2px;
}

.jp-DocumentSearch-replace-button-wrapper {
  overflow: hidden;
  display: inline-block;
  box-sizing: border-box;
  border: var(--jp-border-width) solid var(--jp-border-color0);
  margin: 2px;
}

.jp-DocumentSearch-replace-entry:focus,
.jp-DocumentSearch-replace-button-wrapper:focus {
  border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
}

.jp-DocumentSearch-replace-button {
  display: inline-block;
  text-align: center;
  cursor: pointer;
  box-sizing: border-box;
  background-color: var(--jp-toolbar-background);
  color: var(--jp-font-color1);
  width: 100%;
  height: 100%;
}

.jp-DocumentSearch-replace-button:focus {
  outline: none;
}

.jp-DocumentSearch-replace-wrapper-class {
  margin-left: 14px;
  display: flex;
}

.jp-DocumentSearch-replace-toggle-collapsed,
.jp-DocumentSearch-replace-toggle-expanded {
  border: none;
  background-color: var(--jp-toolbar-background);
}

.jp-DocumentSearch-replace-toggle-collapsed {
  background-image: var(--jp-icon-caret-right);
  background-size: 18px;
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-replace-toggle-collapsed:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-replace-toggle-expanded {
  background-image: var(--jp-icon-caret-down);
  background-size: 18px;
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-replace-toggle-expanded:hover {
  background-color: var(--jp-layout-color2);
}