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              <body>
    <main>
      <header><h1>This is a header</h1></header>
        <article>
            <ul class="gallery">
                <li><img src="http://lorempixel.com/400/300/cats/1"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/2"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/3"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/4"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/5"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/6"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/7"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/8"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/9"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/10"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/1"/></li>
                <li><img src="http://lorempixel.com/400/300/cats/2"/></li>
            </ul>
        </article>
        <aside><p>Lorem ipsum dolor sit amet, error numquam pertinax qui ea, sit veri atqui periculis ex. Cu his paulo ubique, at sed quaeque eripuit appareat, et pro diceret fierent. Ei pri feugiat aliquando, vel altera platonem ea. Per harum viris id.</p>
<p>Possit nonumes in eum. Ex pro dico zril vituperata. Vis ferri utinam an, cu labitur instructior pro. Vix ut dolores vivendum periculis, cu mel alienum recteque. Cu enim sententiae persequeris vim, vitae tation ex sed. Ut indoctum repudiare sit, duis tollit dignissim in nam, ad enim ludus nec.<p></aside>
      <footer><h2>This is a footer</h2></footer>
    </main>
</body>
            
          
!
            
              @import "compass/css3";
@import "susy";

/* Import Compass clearfix */
@import "compass/utilities/general/clearfix";

$color1: #FFFFFF;
$color2: #FF4CA5;
$color3: #ff007f;
$color4: #7F2653;
$color5: #CC0066;
$color6: #031f38;

$susy: (
    columns: 12,
    container: 1200px,
    gutters: 1/4,
    global-box-sizing: border-box,
    debug: (image: hide)
);

@include border-box-sizing;

* {
  font-family: "Helvetica", sans-serif;
}

main {
    @include container;
    background-color: $color1;
}

header {
    margin-bottom: gutter();
    padding: span(1 of 12);
    background-color: $color2;
}

article {
    @include span(8 of 12);
    margin-bottom: gutter();
    height: auto;
    background-color: $color3;
}

aside {
    @include span(4 of 12 last);
    margin-bottom: gutter();
    padding: gutter();
    background-color: $color5;
}

footer {
    clear: both;
    padding: span(1 of 12);
    background-color: $color4;
}

/* Gallery */

ul.gallery {
    @include clearfix;
    padding: span(1 of 8);
    background-color: $color3;
    list-style: none;
    li {
        @include gallery(2 of 6);
        margin-bottom: gutter(6);
        background-color: $color4;
        &:nth-last-child(-n+3) {
            margin-bottom: 0;
        }
    }
}

img {
  display: block;
  width: 100%;
}
    

            
          
!
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