30-seconds-of-code/snippets/hamburger-button.md

title, tags

title	tags
Hamburguer Button	interactivity,beginner

This is a way to build simple hamburger button for menu bar.

<div class="hb-container">
  <span></span>
  <span></span>
  <span></span>
</div>

.hb-container {
  width: 30px;
  height: 30px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.hb-container span {
  width: 30px;
  height: 5px;
  border-radius: 3px;
  margin: 2px 0;
  background-color: #333;
  transition: 0.5s;
}

.hb-container:hover span {
  margin: 0;
}
.hb-container:hover :nth-child(2) {
  opacity: 0;
}
.hb-container:hover :first-child {
  position: absolute;
  transform: rotate(-45deg);
}
.hb-container:hover :last-child {
  position: absolute;
  transform: rotate(45deg);
}

Explanation

• You need of two ou three :span to stack.
• Keep them in rows using :display-flex.
• Use :hover for rotate first :span for -45deg and last 45deg.
• If you use three :span, use :opacity for hide the middle child of container.
• Bonus: You can use JavaScript to manipulate CSS and keep :X.

Browser support

• https://caniuse.com/#search=transform
• https://caniuse.com/#search=display%20flex