HTML-CSS: Hamburger Button

Last update on May 28 2022 07:25:29 (UTC/GMT +8 hours)

HTML-CSS : Exercise-22 with Solution

Using HTML, CSS displays a hamburger menu which transitions to a cross button on hover.

Use a .hamburger-menu container div which contains the top, bottom, and middle bars.
Set the container to display: flex with flex-flow: column wrap.
Add distance between the bars using justify-content: space-between.
Use transform: rotate() to rotate the top and bottom bars by 45 degrees and opacity: 0 to fade the middle bar on hover.
Use transform-origin: left so that the bars rotate around the left point.

HTML Code:

<!--License: https://bit.ly/3GjrtVF-->
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Using HTML, CSS displays a hamburger menu which transitions to a cross button on hover</title>
</head>
<body>
<div class="hamburger-menu">
  <div class="bar top"></div>
  <div class="bar middle"></div>
  <div class="bar bottom"></div>
</div>
</body>
</html>

CSS Code:

.hamburger-menu {
  display: flex;
  flex-flow: column wrap;
  justify-content: space-between;
  height: 2.5rem;
  width: 2.5rem;
  cursor: pointer;
}

.hamburger-menu .bar {
  height: 5px;
  background: Orange;
  border-radius: 5px;
  margin: 3px 0px;
  transform-origin: left;
  transition: all 0.5s;
}

.hamburger-menu:hover .top {
  transform: rotate(45deg);
}

.hamburger-menu:hover .middle {
  opacity: 0;
}

.hamburger-menu:hover .bottom {
  transform: rotate(-45deg);
}

HTML-CSS Editor:

See the Pen html-css-practical-exercises by w3resource (@w3resource) on CodePen.

HTML-CSS: Tips of the Day

What is the difference between id and class in CSS, and when should I use them?

Example:

#header_id {font-color:#fff} .header_class {font-color:#000}

(Note that CSS uses the prefix # for IDs and . for Classes.)

However color was an HTML 4.01 <font> tag attribute deprecated in HTML 5. In CSS there is no "font-color", the style is color so the above should read:

Example:

#header_id {color:#fff} .header_class {color:#000}

The text would be white.

Ref: https://bit.ly/39Stv4P