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HTML

              
                <h1>Grid with Quantity Queries</h1>
<ol class="listing listing--events">
  				<li class="listing__item listing__item--1 event event--future">
    							<a href="http://lanyrd.com/2015/web-sherpa-summit/">
      			<h3 class="listing__item__title event__title">Web Sherpa Summit</h3>
      	<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Online</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--2 event event--future">
    		<a href="http://uxim15.uie.com/">
      		<h3 class="listing__item__title event__title">UX Mobile Immersion</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Salt Lake City, UT USA</b>
      			</p>
  		  </a>
  		</li>
  <li class="listing__item listing__item--3 event event--future">
    		<a href="http://lanyrd.com/2015/convergese/">
      		<h3 class="listing__item__title event__title">Converge SE</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Columbia, SC USA</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--4 event event--future">
    		<a href="http://lanyrd.com/2015/bdconf/">
      		<h3 class="listing__item__title event__title">Breaking Development</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Nashville, TN USA</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--5 event event--future">
    		<a href="http://www.webdesignday.com/">
      		<h3 class="listing__item__title event__title">Web Design Day</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Pittsburgh, PA USA</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--6 event event--future">
    		<a href="http://lanyrd.com/2015/responsive-day-out-3/">
      		<h3 class="listing__item__title event__title">Responsive Day Out</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Brighton, England</b>
      </p>
    	</a>
		  </li>
  <li class="listing__item listing__item--7 event event--future">
    		<a href="http://lanyrd.com/2015/dcontentconf/">
      		<h3 class="listing__item__title event__title">Design/Content</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">August 2015</b>
        				<b class="event__location">Vancouver, BC Canada</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--8 event event--future">
    <a href="http://aneventapart.com/event/washington-dc-2015">
		      <h3 class="listing__item__title event__title">An Event Apart</h3>
			      <p class="listing__item__meta">
				        <b class="event__date">August 2015</b>
				        <b class="event__location">Washington, DC USA</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--9 event event--future">
		    <h3 class="listing__item__title event__title">TBA</h3>
    <p class="listing__item__meta">
      <b class="event__date">November 2015</b>
      <b class="event__location">New York, NY USA</b>
    			</p>
  		</li>
  <li class="listing__item listing__item--10 event event--future">
    		<h3 class="listing__item__title event__title">TBA</h3>
			    <p class="listing__item__meta">
      				<b class="event__date">November 2015</b>
      				<b class="event__location">Malmö, Sweden</b>
    			</p>
				  </li>
</ol>

<h1>Normal Grid</h1>
<ol class="listing listing--events">
  				<li class="listing__item listing__item--1 event">
    							<a href="http://lanyrd.com/2015/web-sherpa-summit/">
      			<h3 class="listing__item__title event__title">Web Sherpa Summit</h3>
      	<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Online</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--2 event">
    		<a href="http://uxim15.uie.com/">
      		<h3 class="listing__item__title event__title">UX Mobile Immersion</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Salt Lake City, UT USA</b>
      			</p>
  		  </a>
  		</li>
  <li class="listing__item listing__item--3 event">
    		<a href="http://lanyrd.com/2015/convergese/">
      		<h3 class="listing__item__title event__title">Converge SE</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">April 2015</b>
        				<b class="event__location">Columbia, SC USA</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--4 event">
    		<a href="http://lanyrd.com/2015/bdconf/">
      		<h3 class="listing__item__title event__title">Breaking Development</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Nashville, TN USA</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--5 event">
    		<a href="http://www.webdesignday.com/">
      		<h3 class="listing__item__title event__title">Web Design Day</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Pittsburgh, PA USA</b>
      			</p>
    		</a>
  		</li>
  <li class="listing__item listing__item--6 event">
    		<a href="http://lanyrd.com/2015/responsive-day-out-3/">
      		<h3 class="listing__item__title event__title">Responsive Day Out</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">June 2015</b>
        				<b class="event__location">Brighton, England</b>
      </p>
    	</a>
		  </li>
  <li class="listing__item listing__item--7 event">
    		<a href="http://lanyrd.com/2015/dcontentconf/">
      		<h3 class="listing__item__title event__title">Design/Content</h3>
      			<p class="listing__item__meta">
        				<b class="event__date">August 2015</b>
        				<b class="event__location">Vancouver, BC Canada</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--8 event">
    <a href="http://aneventapart.com/event/washington-dc-2015">
		      <h3 class="listing__item__title event__title">An Event Apart</h3>
			      <p class="listing__item__meta">
				        <b class="event__date">August 2015</b>
				        <b class="event__location">Washington, DC USA</b>
      			</p>
		    </a>
		  </li>
  <li class="listing__item listing__item--9 event">
		    <h3 class="listing__item__title event__title">TBA</h3>
    <p class="listing__item__meta">
      <b class="event__date">November 2015</b>
      <b class="event__location">New York, NY USA</b>
    			</p>
  		</li>
  <li class="listing__item listing__item--10 event">
    		<h3 class="listing__item__title event__title">TBA</h3>
			    <p class="listing__item__meta">
      				<b class="event__date">November 2015</b>
      				<b class="event__location">Malmö, Sweden</b>
    			</p>
				  </li>
</ol>
              
            
!

CSS

              
                body {
  padding: 1em;
}

.listing--events {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  margin: 0 0 1em;
  padding: 0;
}
 
.event {
  background: rgb(26, 88, 18);
  color: rgb(249, 249, 249);
  text-shadow: 1px 1px 1px rgb(26, 88, 18);
  box-sizing: border-box;
  padding: 1.25rem;
  margin: 0 0 1.25rem;
  flex: 0 0 100%;
  position: relative;
  overflow: hidden;
}

.event a {
  color: white;
}
 
@media only screen and (min-width: 28.75em) {
  
  .event {
    flex: 0 0 calc( 50% - 1.25rem / 2 );
    /* 20px gap divided by 2 events per row */
    margin-left: 1.25rem;
  }
  
  /* Remove left margin for row starters */
  .event:nth-child(odd) {
    margin-left: 0;
  }
  
  /* Reset margins on "future" events
     & remove the correct one */
  .event--future:nth-child(odd) {
    margin-left: 1.25rem;
  }
  .event--future:nth-child(even) {
    margin-left: 0;
  }
  
  /* Quantity Query - when more than 1,
     make the first span both columns  */
  .event--future:nth-last-child(n+1):first-child {
    flex: 0 0 100%;
    font-size: 1.5em;
    margin-left: 0;
  }

}
 
@media only screen and (min-width: 43.125em) {

  /* 1/3 width with a 20px gutter (fudged) */
  .event {
    flex: 0 0 calc( 100% / 3 - 0.875rem );
  }
  
  /* Reset margins */
  .event:nth-child(even),
  .event:nth-child(odd) {
    margin-left: 1.25rem;
  }
  /* Normal Grid margin removal */
  .event:nth-child(3n+1) {
    margin-left: 0;
  }

  /* Quantity Query - when more than 2,
     make the first 2 go 50%  */
  .event--future:nth-last-child(n+2):first-child, 
  .event--future:nth-last-child(n+2):first-child + .event--future {
    flex: 0 0 calc( 50% - 1.25rem / 2  );
    font-size: 1.5em;
  }
  
  /* Margin reset */
  .event--future:nth-child(3n+1) {
    margin-left: 1.25rem;
  }
  
  /* Quantity + nth */
  .event--future:nth-last-child(n+2):first-child ~ .event--future:nth-child(3n) {
    margin-left: 0;
  }
  
}
              
            
!

JS

              
                
              
            
!
999px

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