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Table of Contents
? Basic Structure: HTML Setup
? Styling the Tooltip with CSS
Optional Enhancements
? Key Points to Remember
Home Web Front-end CSS Tutorial How to create a CSS-only tooltip?

How to create a CSS-only tooltip?

Jul 28, 2025 am 04:22 AM

To create a pure CSS prompt box, you must first set up an HTML structure and use a container containing trigger elements and prompt text; 2. Hidden the prompt text by default through CSS, and use the :hover pseudo-class to achieve hover display; 3. Add position, visibility, opacity and transition attributes to achieve smooth display effect; 4. Optionally add pseudo-elements::after to create a pointing arrow and adjust the position to achieve different directions of up, down, left and right; 5. Key points include using visibility instead of display to support transition animation, ensuring that the parent container is positioned as a relative child element and is absolutely, and using z-index to ensure complete hierarchical display.

How to create a CSS-only tooltip?

Creating a tooltip with just CSS is simple and effective—no JavaScript needed. You can build a clean, hover-activated tooltip using HTML and pure CSS. Here's how to do it step by step.

How to create a CSS-only tooltip?

? Basic Structure: HTML Setup

Use a container element (like a span or div ) with a tooltip text inside. The tooltip will appear when the user hovers over the trigger element.

 <div class="tooltip">
  Hover me
  <span class="tooltip-text">This is a tooltip!</span>
</div>

? Styling the Tooltip with CSS

The key idea is to hide the tooltip by default and show it on hover using the :hover pseudo-class.

How to create a CSS-only tooltip?
 /* Tooltip container */
.tooltip {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

/* Tooltip text - hidden by default */
.tooltip-text {
  visibility: hidden;
  width: 120px;
  background-color: #333;
  color: #ffff;
  text-align: center;
  border-radius: 4px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 125%; /* Position above the trigger */
  left: 50%;
  margin-left: -60px; /* Center horizontally */
  opacity: 0;
  transition: opacity 0.3s, visibility 0.3s;
  font-size: 14px;
}

/* Show tooltip on hover */
.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

Optional Enhancements

You can improve the appearance and positioning with a small arrow (triangle) using a pseudo-element:

 /* Add an arrow pointing down */
.tooltip-text::after {
  content: &#39;&#39;;
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #333 transparent transparent transparent;
}

You can adjust bottom , top , or left values to position the tooltip above , below , left , or right of the trigger.

How to create a CSS-only tooltip?

For example, to show the tooltip below :

 .tooltip-text {
  top: 125%;
  bottom: auto;
}

.tooltip-text::after {
  top: -10px;
  border-color: transparent transparent #333 transparent;
}

? Key Points to Remember

  • Use visibility: hidden/visible instead of display: none/block to allow smooth transitions.
  • opacity transition gives a nice fade effect.
  • position: absolute on the tooltip and relative on the container ensure correct positioning.
  • z-index keeps the tooltip above other elements.

Basically, that's it. With just a few lines of CSS, you get a fully functional, styled tooltip—no JavaScript required. Just tweak colors, positioning, and size to match your design.

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