Quelltext der Seite Vorlage:Layout.css

.ac-layout-section {
	display: flex;
}

.ac-layout-section.three_equal .ac-layout-cell {
	flex: 33%;
}

.ac-layout-section.two_equal .ac-layout-cell {
	flex: 50%;
}

.ac-layout-section.three_with_sidebars .ac-layout-cell:nth-child(1) {
	flex: 25%;
}
.ac-layout-section.three_with_sidebars .ac-layout-cell:nth-child(2) {
	flex: 50%;
}
.ac-layout-section.three_with_sidebars .ac-layout-cell:nth-child(3) {
	flex: 25%;
}

.ac-layout-section.two_right_sidebar .ac-layout-cell:nth-child(1) {
	flex: 66%;
}
.ac-layout-section.two_right_sidebar .ac-layout-cell:nth-child(2) {
	flex: 33%;
}

.ac-layout-section.two_left_sidebar .ac-layout-cell:nth-child(1) {
	flex: 33%;
}
.ac-layout-section.two_left_sidebar .ac-layout-cell:nth-child(2) {
	flex: 66%;
}