Bootstrap Pointer - CSS

Bootstrap Pointer is a CSS utility class that adds a pointer to an element. It is a simple and elegant way to add a pointing feature to your website without using any external plugins.

Usage

To use the Bootstrap Pointer, simply add the position and content properties to your CSS. Here is an example:

.tooltip {
  position: relative;
}

.tooltip::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent #000000 transparent;
}

As you can see, we first add the position: relative property to the parent element, which enables us to position the pointer relative to the parent element. Then we add the ::before pseudo-element and set its position property to absolute so that it does not flow with the document.

We then set the content property to an empty string to ensure that the pseudo-element is rendered. We position the pointer using the bottom and left properties, making sure that it is placed above the parent element.

Finally, we set the border-width, border-style, and border-color properties to create the appearance of a triangle.

Customization

You can customize the color, size, and positioning of the pointer to suit your needs. You can also use CSS variables to make your code more maintainable.

Here is an example of how you can customize the pointer:

.tooltip::before {
  border-color: transparent transparent var(--color-primary) transparent;
  border-width: var(--pointer-size);
  bottom: var(--pointer-spacing);
}

In this example, we use the var function to define custom properties for the pointer color, size, and spacing. This makes it easy to adjust these properties in one place, without having to modify the CSS code directly.

Conclusion

Bootstrap Pointer is a useful CSS utility that can add a pointing feature to your website with minimal code. It is easy to customize and maintain, making it a great addition to any website.