@theia/core/src/browser/style/hover-service.css

Theia is a cloud & desktop IDE framework implemented in TypeScript.

/********************************************************************************
 * Copyright (C) 2022 TypeFox and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
 ********************************************************************************/

/* Adapted from https://github.com/microsoft/vscode/blob/7d9b1c37f8e5ae3772782ba3b09d827eb3fdd833/src/vs/workbench/services/hover/browser/hoverService.ts */

:root {
  --theia-hover-max-width: 500px;
  --theia-hover-preview-width: 300px;
}

.theia-hover {
  font-family: var(--theia-ui-font-family);
  font-size: var(--theia-ui-font-size1);
  color: var(--theia-editorHoverWidget-foreground);
  background-color: var(--theia-editorHoverWidget-background);
  border: 1px solid var(--theia-editorHoverWidget-border);
  padding: var(--theia-ui-padding);
  max-width: var(--theia-hover-max-width);
}

.theia-hover .hover-row:not(:first-child):not(:empty) {
  border-top: 1px solid var(--theia-editorHoverWidgetInternalBorder);
}

.theia-hover hr {
  border-top: 1px solid var(--theia-editorHoverWidgetInternalBorder);
  border-bottom: 0px solid var(--theia-editorHoverWidgetInternalBorder);
  margin: var(--theia-ui-padding) calc(var(--theia-ui-padding) * -1);
}

.theia-hover a {
  color: var(--theia-textLink-foreground);
}

.theia-hover a:hover {
  color: var(--theia-textLink-active-foreground);
}

.theia-hover .hover-row .actions {
  background-color: var(--theia-editorHoverWidget-statusBarBackground);
}

.theia-hover code {
  background-color: var(--theia-textCodeBlock-background);
  font-family: var(--theia-code-font-family);
}

.theia-hover::before {
  content: "";
  position: absolute;
}

.theia-hover.top::before {
  left: var(--theia-hover-before-position);
  bottom: -5px;
  border-top: 5px solid var(--theia-editorHoverWidget-border);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
}

.theia-hover.bottom::before {
  left: var(--theia-hover-before-position);
  top: -5px;
  border-bottom: 5px solid var(--theia-editorHoverWidget-border);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
}

.theia-hover.left::before {
  top: var(--theia-hover-before-position);
  right: -5px;
  border-left: 5px solid var(--theia-editorHoverWidget-border);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.theia-hover.right::before {
  top: var(--theia-hover-before-position);
  left: -5px;
  border-right: 5px solid var(--theia-editorHoverWidget-border);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.theia-hover.extended-tab-preview {
  border-radius: 10px;
  width: var(--theia-hover-preview-width);
}