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---
id: bad87fee1348cd8acef08812
title: Create a Block Element Bootstrap Button
challengeType: 0
---
## Description
< section id = 'description' >
Normally, your < code > button< / code > elements with the < code > btn< / code > and < code > btn-default< / code > classes are only as wide as the text that they contain. For example:
< code > < button class="btn btn-default"> Submit< /button> < / code >
This button would only be as wide as the word "Submit".
< button class = 'btn btn-default' > Submit< / button >
By making them block elements with the additional class of < code > btn-block< / code > , your button will stretch to fill your page's entire horizontal space and any elements following it will flow onto a "new line" below the block.
< code > < button class="btn btn-default btn-block"> Submit< /button> < / code >
This button would take up 100% of the available width.
< button class = 'btn btn-default btn-block' > Submit< / button >
Note that these buttons still need the < code > btn< / code > class.
Add Bootstrap's < code > btn-block< / code > class to your Bootstrap button.
< / section >
## Instructions
< section id = 'instructions' >
< / section >
## Tests
< section id = 'tests' >
```yml
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tests:
- text: Your button should still have the < code > btn</ code > and < code > btn-default</ code > classes.
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testString: assert($("button").hasClass("btn") & & $("button").hasClass("btn-default"), 'Your button should still have the < code > btn< / code > and < code > btn-default< / code > classes.');
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- text: Your button should have the class < code > btn-block</ code > .
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testString: assert($("button").hasClass("btn-block"), 'Your button should have the class < code > btn-block< / code > .');
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- text: Make sure all your < code > button</ code > elements have a closing tag.
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testString: assert(code.match(/< \/button > /g) && code.match(/< button / g ) && code . match (/< \/button > /g).length === code.match(/< button / g ). length , ' Make sure all your < code > button</ code > elements have a closing tag.');
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```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< div id = 'html-seed' >
```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;
}
< / style >
< div class = "container-fluid" >
< h2 class = "red-text text-center" > CatPhotoApp< / h2 >
< p > Click here for < 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 >
< img src = "https://bit.ly/fcc-running-cats" class = "img-responsive" alt = "Three kittens running towards the camera." >
< button class = "btn btn-default" > Like< / button >
< 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 >
< form action = "/submit-cat-photo" >
< label > < input type = "radio" name = "indoor-outdoor" > Indoor< / label >
< label > < input type = "radio" name = "indoor-outdoor" > Outdoor< / label >
< label > < input type = "checkbox" name = "personality" > Loving< / label >
< label > < input type = "checkbox" name = "personality" > Lazy< / label >
< label > < input type = "checkbox" name = "personality" > Crazy< / label >
< input type = "text" placeholder = "cat photo URL" required >
< button type = "submit" > Submit< / button >
< / form >
< / div >
```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
// solution required
```
< / section >