Which to use
or
? [duplicate]

Question

I am learning HTML. Can someone please tell me what is the difference between class and id and when to use one over the other? They seem to do the same thing

<!DOCTYPE HTML>
<html>
<head>

<style>

#mycolor1 {color: red;}    
.mycolor2 {color: red;}

</style>

</head>
<body>

<div id="mycolor1">     hello world </div>
<div class="mycolor2">     hello world </div>

</body>
</html>

Explosion Pills · Accepted Answer

Read the spec for the attributes and for CSS.

id must be unique. class does not have to be
id has higher (highest!) specificity in CSS
Elements can have multiple non-ordinal classes (separated by spaces), but only one id
It is faster to select an element by it's ID when querying the DOM
id can be used as an anchor target (using the fragment of the request) for any element. name only works with anchors (<a>)

Which to use <div class="name"> or <div id="name">? [duplicate]

Tags:

html

css

steve h

1 Answers

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