The class attribute assigns one or more classnames to the <select> tag.
Classnames are defined in a stylesheet or in a local <style> element.
Classes, i.e. classnames, are used to style elements.
A class attribute styling a <select> element.
<style>
.select {
padding: 10px;
width: 200px;
font-size:16px;
border: 0;
border-bottom: 3px solid teal;
}
</style>
<select class="select">
<option value="">-- Select city -- </option>
<option value="paris">Paris</option>
<option value="london">London</option>
<option value="athens">Athens</option>
<option value="madrid">Madrid</option>
</select>
Classes (i.e. classnames) are used for styling the select element.
Multiple classnames are separated by a space.
JavaScript uses classes to access elements by classname.
Tip: class is a global attribute that can be applied to any HTML element.
<select class="classnames">
| Value | Description |
|---|---|
| classnames | One or more space-separated class names. |
A class attribute styling a <select> element.
Clicking the button toggles a classname that changes background and text colors.
<style>
.select-bordered {
padding: 10px;
width: 200px;
font-size:16px;
border: 0;
border-bottom: 3px solid teal;
}
.select-underline {
border-color: orangered;
}
</style>
<select id="myselect" class="select-bordered">
<option value="">-- Select city -- </option>
<option value="paris">Paris</option>
<option value="london">London</option>
<option value="athens">Athens</option>
<option value="madrid">Madrid</option>
</select>
<br /><br />
<button onclick="toggle();">Toggle class</button>
<script>
let toggle = () => {
let element = document.getElementById("myselect");
element.classList.toggle("select-underline");
}
</script>
Two CSS classes are defined in the <style> element.
The class attribute in <select> assigns one classname.
Repeatedly clicking the button toggles another class, changing the select background and text color.
Here is when class support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
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