Everything About CSS Tooltips

Tooltips are the same as helper tools in web design, and they play a very important role. They can be used as an additional layer to provide more information to the user without cluttering the main layout of your pages. In fact, when a user hovers their mouse over a specific element, the tooltip presents additional information. This technique is very effective in enhancing the user experience.

By using CSS, you can create beautiful tooltips that will seamlessly integrate into new user interfaces. By utilizing different styles, you have the ability to change the appearance of tooltips to fit specific needs and create unique designs.

For example, you can design tooltips using position and visibility in CSS. Typically, for this purpose, elements like span or div are used so that tooltips are displayed as a child to these elements.

One of the simplest ways to create a tooltip is by using the title attribute in HTML, but this method is not very customizable. If you want to create your own styled tooltips, you should directly use CSS.

An example of a simple tooltip created with CSS is provided to help you become familiar with its implementation.

<style>
  .tooltip {
    position: relative;
    display: inline-block;
    cursor: pointer;
  }

  .tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: black;
    color: #fff;
    text-align: center;
    border-radius: 5px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
  }

  .tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
  }
</style>

<div class="tooltip">
  Hover over me
  <span class="tooltiptext">Tooltip text</span>
</div>

Line-by-Line Code Explanation:
The code .tooltip creates an element with display capabilities for tooltip representation.
Inside .tooltip, styles such as position and inline-block are added for displaying the tooltip.
The code .tooltip .tooltiptext is for styling the tooltip settings, such as visibility and background-color.
For tooltip appearance and fading effects, the transition property is used to apply changes to opacity at a specific time.
For the hover event, the class .tooltip:hover .tooltiptext is used to control showing and hiding the tooltip.