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30-seconds-of-code/snippets/hamburger-button.md
Aaron Schlesinger 247102f95d Fixing a typo in the title of the hamburger button
The hamburger button page was titled "Hamburguer Button", so I corrected it to "Hamburger Button" (no `uer` at the end of hamburger, just `er`)
2019-11-14 12:18:45 -08:00

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---
title: Hamburger Button
tags: interactivity,beginner
---
This is a way to build simple hamburger button for menu bar.
```html
<button class="hb"></button>
```
```css
.hb,
.hb:before,
.hb:after {
position: relative;
width: 30px;
height: 5px;
border: none;
outline: none;
background-color: #333;
border-radius: 3px;
transition: 0.5s;
cursor: pointer;
}
.hb:before,
.hb:after {
content: '';
position: absolute;
top: -7.5px;
left: 0;
}
.hb:after {
top: 7.5px;
}
.hb:hover {
background-color: transparent;
}
.hb:hover:before,
.hb:hover:after {
top: 0;
}
.hb:hover::before {
transform: rotate(45deg);
}
.hb:hover::after {
transform: rotate(-45deg);
}
```
#### Explanation
- Use a `<button>` element for the middle bar of the hamburger icon.
- Use the `::before` and `::after` pseudo-elements to create the top and bottom bars of the icon.
- Use `position: relative` on the `<button>` and `position: absolute` on the pseudo-elements to place them appropriately.
- Use the `:hover` pseudo-selector to rotate `:before` to `45deg` and `:after` to `-45deg` and hide the center bar using`:background-color` transparent.
#### Browser support