How Can I Create a 'Tooltip Tail' Effect with Pure CSS?

Creating a "Tooltip Tail" with Pure CSS

The concept of creating a "tooltip tail" using only CSS is a fascinating one. Here's how to achieve this effect:

Basic "Tooltip Tail" with Border Trick

The first example creates a "tooltip tail" effect using clever border manipulation:

HTML:

<div>Cool Trick:
    <div class="tooltiptail"></div>
</div>
<br>

<div>How do I get this effect with only CSS?
    <div class="anothertail"></div>
</div>

CSS:

.tooltiptail {
    display: block;
    border-color: #ffffff #a0c7ff #ffffff #ffffff;
    border-style: solid;
    border-width: 20px;
    width: 0px;
    height: 0px;
}

.anothertail {
    background-image: url(http://static.jqueryfordesigners.com/demo/images/coda/bubble-tail2.png);
    display: block;
    height: 29px;
    width: 30px;

}

Enhanced "Tooltip Tail" with Box Shadow

To add dimension and a shadow to the tip of the "tooltip tail," you can utilize a box-shadow:

#tailShadow {
    position: absolute;
    bottom: -8px;
    left: 28px;
    width: 0;
    height: 0;
    border: solid 2px #fff;
    box-shadow: 0 0 10px 1px #555;
}

Cross-Browser Compatible "Tooltip Tail" with Shadow

The following snippet ensures cross-browser compatibility for the box-shadow effect:

#tailShadow {
    position: absolute;
    bottom: -8px;
    left: 28px;
    width: 0;
    height: 0;
    border: solid 2px #fff;
    -moz-box-shadow: 0 0 10px 1px #555;
    -webkit-box-shadow: 0 0 10px 1px #555;
    box-shadow: 0 0 10px 1px #555;
}

With these techniques, you can create custom "tooltip tails" in CSS that enhance the visual appeal and functionality of your web elements.

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