I have a dropdown menu 开发者_运维技巧with items and I wanted to use the ODD and EVEN to alternate the colors. My question is...What's the CSS code for styling Dropdown list items please?
Use the CSS nth-child pseudo-class:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>HTML Dropdown list item baground colors</title>
<style type="text/css">
#myForm select option:nth-child(odd) {
color:black;
background:yellow;
}
#myForm select option:nth-child(even) {
color:white;
background:blue;
}
#myForm select {
background:green;
color:orange;
}
</style>
</head>
<body>
<form id="myForm" action="#" method="get">
<select>
<option>A</option>
<option>B</option>
<option>C</option>
<option>D</option>
<option>E</option>
<option>F</option>
</select>
</div>
</body>
</html>
You can set different background as:
#o1{background:red;}
#o2{background:green;}
#o3{background:#FFEA76;}
<option id="o1">blah 1</option>
<option id="o2">blah 2</option>
<option id="o3">blah 3</option>
You can set a default style for the list items and then apply a more specific style to change even items. The odd items will receive the default style.
.nav{
padding: 0;
list-style: none;
}
.nav li{
color: #c1a404;
background: #007e96;
padding: 10px;
font-size: 20px;
font-family: Futura, sans-serif;
}
.nav li:nth-child(even) {
color: white;
background: dodgerblue;
}<ul class="nav">
<li>Home</li>
<li>About Us</li>
<li>News</li>
<li>Careers</li>
<li>Contact</li>
</ul>
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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