wanzongbiz.com/assets/sass/layout/_wrapper.scss

///
/// Solid State by HTML5 UP
/// html5up.net | @ajlkn
/// Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)
///

/* Wrapper */

	/// Sets the colors of the wrapper's top/bottom edges.
	/// @param {string} $color Color.
	@mixin wrapper-edges-color($color: black) {
		&:before, &:after {
			background-image: svg-url('<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon points="0,100 100,0 100,100" style="fill:#{$color};" /></svg>');
		}

		&:before {
			box-shadow: inset 0 -1px 0 0 $color, 0 1px 0 0 $color;
		}

		&:after {
			box-shadow: inset 0 -1px 0 0 $color, 0 1px 0 0 $color;
		}
	}

	#wrapper {
		> header {
			@include padding(7.5em, 0, (3.5em, 0, _size(wrapper-edges, large) * -0.5, 0));

			.inner {
				margin: 0 auto;
				width: _size(inner);
			}

			h2 {
				border-bottom: solid 2px _palette(border);
				font-size: 2em;
				margin-bottom: _size(element-margin) * 0.4;
				padding-bottom: _size(element-margin) * 0.2;
			}

			p {
				font-family: _font(family-heading);
				font-size: 1em;
				font-weight: _font(weight-heading);
				letter-spacing: _font(kern-heading);
				line-height: 2;
				text-transform: uppercase;
			}
		}

		@include breakpoint('<=large') {
			> header {
				@include padding(5em, 0, (4em, 0, _size(wrapper-edges, large) * 0.5, 0));

				background-color:		_palette(bg);

				background-image:		linear-gradient(to top, transparentize(_palette(bg), 0.2), transparentize(_palette(bg), 0.2)),
										url('../../images/bg.jpg');

				background-size:		auto,
										cover;

				background-position:	center,
										0% 30%;

		 		margin-bottom: (_size(wrapper-edges, large) * -1);
			}
		}

		@include breakpoint('<=medium') {
			> header {
				@include padding(7em, 3em, (4em, 0, _size(wrapper-edges, medium) * 0.5, 0));

				background-size:		auto,
										cover;

				background-position:	center,
										0% 0%;

		 		margin-bottom: (_size(wrapper-edges, medium) * -1);

				.inner {
					width: 100%;
				}
			}
		}

		@include breakpoint('<=small') {
			> header {
				@include padding(3.75em, 2em, (2.75em, 0, _size(wrapper-edges, small) * 0.5, 0));

				background-size:		auto,
										125%;

		 		margin-bottom: (_size(wrapper-edges, small) * -1);

				h2 {
					font-size: 1.25em;
				}

				p {
					font-size: 0.8em;
				}
			}
		}
	}

	.wrapper {
		background-color: _palette(bg);
		margin: _size(wrapper-edges, large) 0;
		position: relative;
		@include wrapper-edges-color(_palette(bg));

		&:before, &:after {
			background-repeat: no-repeat;
			background-size: 100% 100%;
			content: '';
			display: block;
			height: _size(wrapper-edges, large);
			position: absolute;
			width: 100%;
		}

		&:before {
			left: 0;
			top: (_size(wrapper-edges, large) * -1);
		}

		&:after {
			@include vendor('transform', 'scaleY(-1)');
			bottom: (_size(wrapper-edges, large) * -1);
			left: 0;
		}

		&.alt {
			&:before {
				@include vendor('transform', 'scaleX(-1)');
			}

			&:after {
				@include vendor('transform', 'scaleY(-1) scaleX(-1)');
			}
		}

		.inner {
			@include padding(3em, 0);
			margin: 0 auto;
			width: _size(inner);
		}

		@for $i from 2 through _misc(max-wrapper-styles) {
			$j: 3 * ($i - 1);
			$color: desaturate(lighten(_palette(bg), $j), $j * 0.5);

			&.style#{$i} {
				background-color: $color;
				@include wrapper-edges-color($color);
			}
		}

		&.spotlight {
			@include wrapper-edges-color(_palette(accent));
			background-color: _palette(accent);

			.inner {
				@include vendor('display', 'flex');
				@include vendor('align-items', 'center');
				@include vendor('flex-direction', 'row');
			}

			.image {
				border-radius: 100%;
				margin: 0 _size(section-spacing, large) _size(element-margin) 0;
				width: 22em;
				overflow: hidden;
				-ms-flex: 1;

				img {
					border-radius: 100%;
					width: 100%;
				}
			}

			.content {
				width: 100%;
				-ms-flex: 2;
			}

			&:nth-child(2n - 1) {
				.inner {
					@include vendor('flex-direction', 'row-reverse');
					text-align: right;
				}

				.image {
					margin: 0 0 _size(element-margin) _size(section-spacing, large);
				}
			}

			@for $i from 2 through _misc(max-wrapper-styles) {
				$j: 3 * ($i - 1);
				$color: saturate(darken(_palette(accent), $j), $j * 0.5);

				&.style#{$i} {
					background-color: $color;
					@include wrapper-edges-color($color);
				}
			}
		}

		@include breakpoint('<=medium') {
			margin: _size(wrapper-edges, medium) 0;

			&:before, &:after {
				height: _size(wrapper-edges, medium);
			}

			&:before {
				top: (_size(wrapper-edges, medium) * -1);
			}

			&:after {
				bottom: (_size(wrapper-edges, medium) * -1);
				left: 0;
			}

			.inner {
				@include padding(3em, 3em);
				width: 100%;
			}

			&.spotlight {
				.image {
					margin: 0 _size(section-spacing, medium) _size(element-margin) 0;
					width: 32em;
				}

				&:nth-child(2n - 1) {
					.image {
						margin: 0 0 _size(element-margin) _size(section-spacing, medium);
					}
				}
			}
		}

		@include breakpoint('<=small') {
			margin: _size(wrapper-edges, small) 0;

			&:before, &:after {
				height: _size(wrapper-edges, small);
			}

			&:before {
				top: (_size(wrapper-edges, small) * -1);
			}

			&:after {
				bottom: (_size(wrapper-edges, small) * -1);
				left: 0;
			}

			.inner {
				@include padding(2em, 2em);
			}

			&.spotlight {
				.inner {
					@include vendor('align-items', 'flex-start');
				}

				.image {
					width: 19em;
					margin: 0 _size(section-spacing, small) _size(element-margin) 0;
				}

				&:nth-child(2n - 1) {
					.image {
						margin: 0 0 _size(element-margin) _size(section-spacing, small);
					}
				}
			}
		}

		@include breakpoint('<=xsmall') {
			&.spotlight {
				.inner {
					display: block;
				}

				.image {
					margin: 0 0 (_size(element-margin) * 0.5) 0 !important;
					max-width: 85%;
					width: 12em;
				}
			}
		}

		@include breakpoint('<=xxsmall') {
			.inner {
				@include padding(2em, 1.5em);
			}
		}
	}