curriculum/challenges/english/blocks/learn-css-flexbox-by-building-a-photo-gallery/64dd076a1b33c86d84b4232f.md
In order to better visualize how your elements are sized, adding a border can be helpful.
Give your .gallery element a width of 50% and a border set to 5px solid red.
Then give your img elements a width of 100%, padding set to 5px, and a border set to 5px solid blue.
You should have a .gallery selector.
assert.exists(new __helpers.CSSHelp(document).getStyle('.gallery'));
Your .gallery selector should have a width property.
assert.exists(new __helpers.CSSHelp(document).getStyle('.gallery')?.width);
Your .gallery selector should have a width property set to 50%.
assert.equal(new __helpers.CSSHelp(document).getStyle('.gallery')?.width, '50%');
Your .gallery selector should have a border property.
assert.exists(new __helpers.CSSHelp(document).getStyle('.gallery')?.border);
Your .gallery selector should have a border property set to 5px solid red.
assert.equal(new __helpers.CSSHelp(document).getStyle('.gallery')?.border, '5px solid red');
You should have an img selector.
assert.exists(new __helpers.CSSHelp(document).getStyle('img'));
Your img selector should have a width property.
assert.exists(new __helpers.CSSHelp(document).getStyle('img')?.width);
Your img selector should have a width property set to 100%.
assert.equal(new __helpers.CSSHelp(document).getStyle('img')?.width, '100%');
Your img selector should have a padding property.
assert.exists(new __helpers.CSSHelp(document).getStyle('img')?.padding);
Your img selector should have a padding property set to 5px.
assert.equal(new __helpers.CSSHelp(document).getStyle('img')?.padding, '5px');
Your img selector should have a border property.
assert.exists(new __helpers.CSSHelp(document).getStyle('img')?.border);
Your img selector should have a border property set to 5px solid blue.
assert.equal(new __helpers.CSSHelp(document).getStyle('img')?.border, '5px solid blue');
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Photo Gallery</title>
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<header class="header">
<h1>css flexbox photo gallery</h1>
</header>
<div class="gallery">
</div>
</body>
</html>
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