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---
id: bad87eee1348bd9aede07836
title: Set the id of an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cN6MEc2'
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forumTopicId: 18279
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dashedName: set-the-id-of-an-element
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---
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# --description--
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In addition to classes, each HTML element can also have an `id` attribute.
There are several benefits to using `id` attributes: You can use an `id` to style a single element and later you'll learn that you can use them to select and modify specific elements with JavaScript.
`id` attributes should be unique. Browsers won't enforce this, but it is a widely agreed upon best practice. So please don't give more than one element the same `id` attribute.
Here's an example of how you give your `h2` element the id of `cat-photo-app` :
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```html
< h2 id = "cat-photo-app" >
```
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# --instructions--
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Give your `form` element the id `cat-photo-form` .
# --hints--
Your `form` element should have the id of `cat-photo-form` .
```js
assert($('form').attr('id') === 'cat-photo-form');
```
# --seed--
## --seed-contents--
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```html
< link href = "https://fonts.googleapis.com/css?family=Lobster" rel = "stylesheet" type = "text/css" >
< style >
.red-text {
color: red;
}
h2 {
font-family: Lobster, monospace;
}
p {
font-size: 16px;
font-family: monospace;
}
.thick-green-border {
border-color: green;
border-width: 10px;
border-style: solid;
border-radius: 50%;
}
.smaller-image {
width: 100px;
}
.silver-background {
background-color: silver;
}
< / style >
< h2 class = "red-text" > CatPhotoApp< / h2 >
< main >
< p class = "red-text" > Click here to view more < a href = "#" > cat photos< / a > .< / p >
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< a href = "#" > < img class = "smaller-image thick-green-border" src = "https://bit.ly/fcc-relaxing-cat" alt = "A cute orange cat lying on its back." > < / a >
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< div class = "silver-background" >
< p > Things cats love:< / p >
< ul >
< li > cat nip< / li >
< li > laser pointers< / li >
< li > lasagna< / li >
< / ul >
< p > Top 3 things cats hate:< / p >
< ol >
< li > flea treatment< / li >
< li > thunder< / li >
< li > other cats< / li >
< / ol >
< / div >
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< form action = "https://freecatphotoapp.com/submit-cat-photo" >
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< label > < input type = "radio" name = "indoor-outdoor" checked > Indoor< / label >
< label > < input type = "radio" name = "indoor-outdoor" > Outdoor< / label > < br >
< label > < input type = "checkbox" name = "personality" checked > Loving< / label >
< label > < input type = "checkbox" name = "personality" > Lazy< / label >
< label > < input type = "checkbox" name = "personality" > Energetic< / label > < br >
< input type = "text" placeholder = "cat photo URL" required >
< button type = "submit" > Submit< / button >
< / form >
< / main >
```
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# --solutions--
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```html
< link href = "https://fonts.googleapis.com/css?family=Lobster" rel = "stylesheet" type = "text/css" >
< style >
.red-text {
color: red;
}
h2 {
font-family: Lobster, monospace;
}
p {
font-size: 16px;
font-family: monospace;
}
.thick-green-border {
border-color: green;
border-width: 10px;
border-style: solid;
border-radius: 50%;
}
.smaller-image {
width: 100px;
}
.silver-background {
background-color: silver;
}
< / style >
< h2 class = "red-text" > CatPhotoApp< / h2 >
< main >
< p class = "red-text" > Click here to view more < a href = "#" > cat photos< / a > .< / p >
< a href = "#" > < img class = "smaller-image thick-green-border" src = "https://bit.ly/fcc-relaxing-cat" alt = "A cute orange cat lying on its back." > < / a >
< div class = "silver-background" >
< p > Things cats love:< / p >
< ul >
< li > cat nip< / li >
< li > laser pointers< / li >
< li > lasagna< / li >
< / ul >
< p > Top 3 things cats hate:< / p >
< ol >
< li > flea treatment< / li >
< li > thunder< / li >
< li > other cats< / li >
< / ol >
< / div >
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< form action = "https://freecatphotoapp.com/submit-cat-photo" id = "cat-photo-form" >
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< label > < input type = "radio" name = "indoor-outdoor" checked > Indoor< / label >
< label > < input type = "radio" name = "indoor-outdoor" > Outdoor< / label > < br >
< label > < input type = "checkbox" name = "personality" checked > Loving< / label >
< label > < input type = "checkbox" name = "personality" > Lazy< / label >
< label > < input type = "checkbox" name = "personality" > Energetic< / label > < br >
< input type = "text" placeholder = "cat photo URL" required >
< button type = "submit" > Submit< / button >
< / form >
< / main >
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```