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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              

<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>
            
          
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              @gray-darker:               #444444;
@gray-dark:                 #696969;
@gray:                      #999999;
@gray-light:                #cccccc;
@gray-lighter:              #ececec;
@gray-lightest:             lighten(@gray-lighter,4%);

*,
*::before,
*::after { 
  box-sizing: border-box;
}

html {
  background-color: #f0f0f0;
}

body {
  color: @gray;
  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 @gray-light;
  //border-radius: 1rem;
  color: @gray-dark;
  padding: 0.5rem;
  text-transform: lowercase;
}

.btn--block {
  display: block;
  width: 100%;
}
 
.cards {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.cards__item {
  display: flex;
  padding: 1rem;
  @media(min-width: 40rem) {
    width: 50%;
  }
  @media(min-width: 56rem) {
    width: 33.3333%;
  }
}

.card {
  background-color: white;
  border-radius: 0.25rem;
  box-shadow: 0 20px 40px -14px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  &:hover {
    .card__image {
      filter: contrast(100%);
    }
  }
}

.card__content {
  display: flex;
  flex: 1 1 auto;
  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;
  filter: contrast(70%);
  //filter: saturate(180%);
  overflow: hidden;
  position: relative;
  transition: filter 0.5s cubic-bezier(.43,.41,.22,.91);;
  &::before {
    content: "";
	  display: block;
    padding-top: 56.25%; // 16:9 aspect ratio
  }
  @media(min-width: 40rem) {
    &::before {
      padding-top: 66.6%; // 3:2 aspect ratio
    }
  }
}

.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: @gray-dark;
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.card__text {
  flex: 1 1 auto;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 1.25rem;
}


            
          
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