@media only screen and (min-width: 620px) {

	   .blog section, .categories-list  {display: flex; flex-direction: row;  justify-content: space-between; align-items:stretch;  flex-wrap: wrap;}

		.blog section> *, .categories-list > *
		{
			flex: 1;
			margin: 10px;
			
		}

	   
	   .blog section > article { min-width: 500px; background: #fff; border: 1px solid #ccc;}	     
}