<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<ul class="cards">
<li class="cards__item">
<div class="card">
<div class="card__image card__image--fence"></div>
<div class="card__content">
<div class="card__title">Flex</div>
<p class="card__text">This is the shorthand for flex-grow, flex-shrink and flex-basis combined. The second and third parameters (flex-shrink and flex-basis) are optional. Default is 0 1 auto. </p>
<button class="btn btn--block card__btn">Button</button>
</div>
</div>
</li>
<li class="cards__item">
<div class="card">
<div class="card__image card__image--river"></div>
<div class="card__content">
<div class="card__title">Flex Grow</div>
<p class="card__text">This defines the ability for a flex item to grow if necessary. It accepts a unitless value that serves as a proportion. It dictates what amount of the available space inside the flex container the item should take up.</p>
<button class="btn btn--block card__btn">Button</button>
</div>
</div>
</li>
<li class="cards__item">
<div class="card">
<div class="card__image card__image--record"></div>
<div class="card__content">
<div class="card__title">Flex Shrink</div>
<p class="card__text">This defines the ability for a flex item to shrink if necessary. Negative numbers are invalid.</p>
<button class="btn btn--block card__btn">Button</button>
</div>
</div>
</li>
<li class="cards__item">
<div class="card">
<div class="card__image card__image--flowers"></div>
<div class="card__content">
<div class="card__title">Flex Basis</div>
<p class="card__text">This defines the default size of an element before the remaining space is distributed. It can be a length (e.g. 20%, 5rem, etc.) or a keyword. The auto keyword means "look at my width or height property."</p>
<button class="btn btn--block card__btn">Button</button>
</div>
</div>
</li>
</ul>
*,
*::before,
*::after {
box-sizing: border-box;
}
html {
background-color: #f0f0f0;
}
body {
color: #999999;
font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-style: normal;
font-weight: 400;
letter-spacing: 0;
padding: 1rem;
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
-moz-font-feature-settings: "liga" on;
}
img {
height: auto;
max-width: 100%;
vertical-align: middle;
}
.btn {
background-color: white;
border: 1px solid #cccccc;
color: #696969;
padding: 0.5rem;
text-transform: lowercase;
}
.btn--block {
display: block;
width: 100%;
}
.cards {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-ms-flex-wrap: wrap;
flex-wrap: wrap;
list-style: none;
margin: 0;
padding: 0;
}
.cards__item {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
padding: 1rem;
}
@media (min-width: 40rem) {
.cards__item {
width: 50%;
}
}
@media (min-width: 56rem) {
.cards__item {
width: 33.3333%;
}
}
.card {
background-color: white;
border-radius: 0.25rem;
box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.25);
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-ms-flex-direction: column;
flex-direction: column;
overflow: hidden;
}
.card:hover .card__image {
-webkit-filter: contrast(100%);
filter: contrast(100%);
}
.card__content {
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-flex: 1;
-ms-flex: 1 1 auto;
flex: 1 1 auto;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-ms-flex-direction: column;
flex-direction: column;
padding: 1rem;
}
.card__image {
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
border-top-left-radius: 0.25rem;
border-top-right-radius: 0.25rem;
-webkit-filter: contrast(70%);
filter: contrast(70%);
overflow: hidden;
position: relative;
-webkit-transition: -webkit-filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91);
transition: -webkit-filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91);
transition: filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91);
transition: filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91), -webkit-filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91);
}
.card__image::before {
content: "";
display: block;
padding-top: 56.25%;
}
@media (min-width: 40rem) {
.card__image::before {
padding-top: 66.6%;
}
}
.card__image--flowers {
background-image: url(https://unsplash.it/800/600?image=82);
}
.card__image--river {
background-image: url(https://unsplash.it/800/600?image=11);
}
.card__image--record {
background-image: url(https://unsplash.it/800/600?image=39);
}
.card__image--fence {
background-image: url(https://unsplash.it/800/600?image=59);
}
.card__title {
color: #696969;
font-size: 1.25rem;
font-weight: 300;
letter-spacing: 2px;
text-transform: uppercase;
}
.card__text {
-webkit-box-flex: 1;
-ms-flex: 1 1 auto;
flex: 1 1 auto;
font-size: 0.875rem;
line-height: 1.5;
margin-bottom: 1.25rem;
}