<p>Check <a href="https://codepen.io/matuzo/post/animating-css-grid-layout-properties">this post</a> for more details</p>
<button class="js-button">Animate</button>
<div class="grid js-grid">
<article class="item">
<h2>Element 1</h2>
</article>
<article class="item">
<h2>Element 2</h2>
</article>
<article class="item">
<h2>Element 3</h2>
</article>
<article class="item">
<h2>Element 4</h2>
</article>
<article class="item">
<h2>Element 5</h2>
</article>
<article class="item">
<h2>Element 6</h2>
</article>
<article class="item">
<h2>Element 7</h2>
</article>
<article class="item">
<h2>Element 8</h2>
</article>
<article class="item">
<h2>Element 9</h2>
</article>
<article class="item">
<h2>Element 10</h2>
</article>
<article class="item">
<h2>Element 11</h2>
</article>
<article class="item">
<h2>Element 12</h2>
</article>
</div>
.grid {
display: grid;
grid-template-columns: 200px 200px 200px;
grid-template-rows: 100px;
grid-gap: 20px;
transition: all 1s;
}
.grid--full {
grid-template-columns: 300px 300px 300px;
grid-template-rows: 200px;
grid-gap: 10px;
}
button {
background-color: #123456;
color: #ffffff;
margin: 2rem 0;
padding: 1.4rem;
border: none;
border-radius: 5px;
text-transform: uppercase;
font-size: 1.2rem;
}
dt {
font-weight: bold;
margin-bottom: 0.5rem;
}
document.querySelector('.js-button').addEventListener('click', function() {
console.log('test')
document.querySelector('.js-grid').classList.toggle('grid--full')
})
This Pen doesn't use any external JavaScript resources.