Multiple Divs With The Same Id Applying Css Style Works Same Like Class?

I'm confused about the class and id selection with css if i have multiple divs with same ID changeing ID to Class does not have any effect on the result style

Solution 1:

First of all, using multiple times the same id is invalid. Never do it.

Then, in css selectors, you need to use

• ".whatever" to target classes
• "#whatever" to target ids.

Here is an example.

<!-- in HTML -->
<div id="identifier1"></div>
<div class="class1"></div>
<div class="class1"></div>

/* In css */
#identifier1 { /* This targets the first div */ };
.class1 { /* This targets the second and third div */ };

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