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author | Bradley Taunt <bt@btxx.org> | 2024-06-06 08:05:12 -0400 |
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committer | Bradley Taunt <bt@btxx.org> | 2024-06-06 08:05:12 -0400 |
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tree | b16fbb9a045e33dd6c97eb5ab72e6ff4d9237ea3 /posts/menu-toggle-css.md |
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diff --git a/posts/menu-toggle-css.md b/posts/menu-toggle-css.md new file mode 100644 index 0000000..e08fd96 --- /dev/null +++ b/posts/menu-toggle-css.md @@ -0,0 +1,96 @@ +# Menu Toggle with Pure CSS + +2020-10-19 + +When thinking through navigation designs for mobile devices sometimes the best option is to store away the content behind a toggle button. This button would then display the menu items upon interaction. Let me show you how to create such an element with only CSS - no need for JavaScript today! + +## Before we begin + +I would like to point out that the concept of "toggling" the main menu (even for mobile) is not always the best solution. If you're interested, you can take a look at a previous article I wrote explaining why: [Using Hamburger Menus? Try Sausage Links](/hamburger-menu-alternative.html) + +Now that we have mentioned possible pitfalls of relying so heavily on toggle menus, let's build one! + +## Our Final Product + +![Menu toggle made from pure CSS](/public/images/menu-toggle-css.png) + +[Live CodePen Example](https://codepen.io/bradleytaunt/pen/mdEEvEX) + +## The HTML + +To implement this design you really don't need much in terms of HTML: + +- A single `checkbox` input +- A `label` that corresponds to the `checkbox` +- A `nav` element to house our unordered list items + + + <!-- The checkbox input & label partner --> + <input type="checkbox" id="menu-toggle"> + <label for="menu-toggle">Menu</label> + + <!-- The navigation we wish to toggle --> + <nav> + <ul> + <li><a href="">Home</a></li> + <li><a href="">About</a></li> + <li><a href="">Articles</a></li> + <li><a href="">Colophon</a></li> + <li><a href="">Contact</a></li> + </ul> + </nav> + + +That's it! + +## The CSS + +The first thing we need to do is "hide" the `checkbox` input element. It's important to avoid using `display: none` or `visibility: hidden` in order to achieve this. Those CSS properties can negatively impact accessibility (specifically screen readers). So we will be relying on the `position`, `z-index` and `opacity` properties to help us out. + + + /* Set the input position to absolute, send it off screen with zero opacity */ + input[type="checkbox"] { + left: -9999px; + opacity: 0; + position: absolute; + } + + +Then we give our corresponding `label` a minor face-lift to make it appear more button-like: + + + /* Minor visual styling to make the label more button-y */ + label { + border: 1px solid currentColor; + border-radius: 4px; + cursor: pointer; + padding: 10px; + } + + +For our main `nav` element, we want to set it's position to `absolute` in order to avoid any janky page rendering issues that might occur when toggling the menu: + +` + /* Set nav to absolute (avoids odd page rendering space pop-in) */ + nav { + opacity: 0; + position: absolute; + z-index: -2; + } + + +The last step is to actually *show* the menu if the user toggles the `checkbox`: + + + /* Show nav when checkbox is checked */ + input[type="checkbox"]:checked ~ nav { + opacity: 1; + z-index: 1; + } + + +It might not look like much, but you now have a fully functional menu toggle - **made with pure CSS**! + +## With Great Power... + +Although this design is very simple to implement, please remember to use these types of menus wisely. Just because you *can* do something, doesn't always mean you *should*. |