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CSS

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HTML 

              
                <article>
	<h1>Boilerplate for Grids</h1>
	<section>
		<h2>1. Floated items</h2>
		<div class="grid grid-floated">
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
		</div><!-- .grid -->
		<h2>2. Inline-block items</h2>
		<div class="grid grid-ib">
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
		</div><!-- .grid -->
		<h2>3. Flexbox — single row</h2>
		<div class="grid grid-flex">
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
		</div><!-- .grid -->
		<h2>4. Flexbox with float fallback</h2>
		<div class="grid grid-floated grid-flex">
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
		</div><!-- .grid -->
		<h2>5. Flexbox with inline-block fallback</h2>
		<div class="grid grid-ib grid-flex">
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
			<div class="grid-size-1of5">
				<div class="grid-content">1/5</div>
			</div>
		</div><!-- .grid -->
		<h2>6. Two column layout (flex + floats)</h2>
		<div class="grid grid-floated grid-flex">
			<div class="grid-golden-1">
				<div class="grid-content">62%</div>
			</div>
			<div class="grid-golden-2">
				<div class="grid-content">38%</div>
			</div>
		</div><!-- .grid -->
		<h2>7. Two column layout (flex + inline-blocks)</h2>
		<div class="grid grid-ib grid-flex">
			<div class="grid-golden-1">
				<div class="grid-content">62%</div>
			</div>
			<div class="grid-golden-2">
				<div class="grid-content">38%</div>
			</div>
		</div><!-- .grid -->
	</section>
</article>
!

CSS 

              
                * {
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

html { background-color: #666; }

body {
	width: 90%;
	margin: 1.5em auto;
	padding: 24px;
	background-color: #f0f0f0;
	color: #000;
}

/* Establish block-formatting context to contain floats and margins */
section {
	display: inline-block;
	width: 100%;
}

/* gutter of 20px; margin-left puts 10px before and after */
.grid {
	width: 100%;
	margin-left: -10px;
	margin-bottom: 1.5em;
}

/* padding-left creates gutter */
.grid > * {
	padding-left: 20px;
}

/* Clear floats */
.grid-content {
	padding: .75em;
	background-color: #c4c4c4;
	background-color: rgba(153, 153, 153, .5);

}

/* styles for floated layout */
.grid-floated:after {
	content: '';
	display: table;
	clear: both;
}

.grid-floated > * {
	float: left;
}

/*	Styles for inline-block layout */
/*	Note: Most, but not all browsers eliminate the single space between each inline-block. Using white-space:nowrap; prevents the grids wrapping, at the expense of a slightly wider grid. */
.grid-ib {
	font-size: 0;
	white-space: nowrap;
}

/* Be sure to reset these "fixes" */
.grid-ib > * {
	display: inline-block;
	font-size: 16px;
	font-size: 1rem;
	white-space: normal;
}

/* Styles for flex layout */
/* 	Note: display:-webkit-box is an old version of flexbox used by Safari 5 (Windows) and Android. It does not play well with floats and inline-blocks, so is omitted. */
.grid-flex {
	display: -ms-flexbox;	/* IE 10 */
	display: -webkit-flex;	/* Opera 15-16 */
	display: flex;			/* IE 11; FF 22+; Opera 12.1, 17+; Chrome 29+ */
}

/* Grid element sizes */
.grid-size-1of5 { width: 20%; }
.grid-size-1of3 { width: 33.3%; }
.grid-golden-1 { width: 62%; }
.grid-golden-2 { width: 38%; }

/* Fall back to single column for narrow widths */
@media (max-width:40em) {
	.grid {
		display: block;
	}

	.grid > * {
		width: 100%;
		margin-bottom: 1.5em;
	}
}

/* IE 7 support if you need it */
.grid-ib > * {
	*display: inline;
}

.grid-content {
	*background-color: #c4c4c4;
}

.grid-size-1of5 {
	width: expression((this.parentNode.clientWidth/5 - parseInt(this.currentStyle['paddingLeft']) - parseInt(this.currentStyle['paddingRight'])) + 'px');
}

.grid-size-1of3 {
	width: expression((this.parentNode.clientWidth/3 - parseInt(this.currentStyle['paddingLeft']) - parseInt(this.currentStyle['paddingRight'])) + 'px');
}

.grid-golden-1 {
	width: expression((this.parentNode.clientWidth*0.62 - parseInt(this.currentStyle['paddingLeft']) - parseInt(this.currentStyle['paddingRight'])) + 'px');
}

.grid-golden-2 {
	width: expression((this.parentNode.clientWidth*0.38 - parseInt(this.currentStyle['paddingLeft']) - parseInt(this.currentStyle['paddingRight'])) + 'px');
}
!

JS 

              
                /** If you use Modernizr to detect support for flex, you could add this rule to prevent float drop that may occur with percent widths on floats:

.no-flexbox .grid-last {
  float: none;
  overflow: hidden;
  width: auto;
 }
 
 Where .grid-last class is added to the final column.
 See the answer to "How does ez-css work?" here:
 http://www.ez-css.org/faq
*/
!
999px

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