How Can I Create a Horizontal Dropdown Menu Using Only CSS?

Creating Horizontal Dropdown Menus Purely with CSS

Horizontal dropdown menus offer an easy-to-navigate experience by allowing users to hover over a primary menu item to reveal sub-menus. Achieving this effect purely with CSS requires some styling prowess.

HTML Structure:

Start by creating an unordered list (<ul>) with

elements for each menu item. Sub-menus are represented by nested <ul> elements.

CSS Styling:

<ul>

Positioning: Set the outer <ul> element to display as a block and add floating left to the

elements to create a horizontal layout.

Sub-Menu Visibility: Initially, hide the sub-menus by setting their display to none.

Menu Item Styles:

<ul>

Define background color, padding, text color, and border for menu items.

Hover Effects:

<ul>

Add background color changes on hover for menu items.

Unhide sub-menus on hover by setting their display to block and positioning them absolutely.

Responsive Sub-Menus:

<ul>

Reduce the font size of sub-menu items on hover for easier readablity.

Add background color changes to sub-menu items on hover.

Example Code:

<ul>

ul {
  font-family: Arial, Verdana;
  font-size: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

ul li {
  display: block;
  position: relative;
  float: left;
}

li ul {
  display: none;
}

ul li a {
  display: block;
  text-decoration: none;
  color: #ffffff;
  border-top: 1px solid #ffffff;
  padding: 5px 15px 5px 15px;
  background: #2C5463;
  margin-left: 1px;
  white-space: nowrap;
}

ul li a:hover {
  background: #617F8A;
}

li:hover ul {
  display: block;
  position: absolute;
}

li:hover li {
  float: none;
  font-size: 11px;
}

li:hover a {
  background: #617F8A;
}

li:hover li a:hover {
  background: #95A9B1;
}

Live Demo:
[Pure CSS Horizontal Dropdown Menu](http://jsfiddle.net/XPE3w/7/)

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