.fluid-span-1{width:32%}.fluid-span-2{width:66%}.fluid-span-3{width:100%}.fluid-offset-1{margin-left:34%}.fluid-offset-2{margin-left:68%}@media(max-width:639px){.fluid-span-1{width:49%}.fluid-span-2{width:100%}.fluid-offset-1{margin-left:51%}}