Both these 2 column layouts have the same markup. Columns are moved using relative positioning.

Layout 1:

My Awesome Heading

This is sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Column Heading

Side column sample content

Column Heading

Side column sample content

Layout 2:

My Awesome Heading

This is sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Column Heading

Side column sample content

Column Heading

Side column sample content

Similarly these 3 column layouts all have the same markup. Columns are moved using relative positioning.

Layout 1:

My Awesome Heading

This is sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Column Heading

Side column sample content

Column Heading

Side column sample content

Sample Content

Sample Content

Sample Content

Sample Content

Layout 2:

My Awesome Heading

This is sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Column Heading

Side column sample content

Column Heading

Side column sample content

Sample Content

Sample Content

Sample Content

Sample Content

Layout 3:

My Awesome Heading

This is sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Another Heading

Even more sample content

Column Heading

Side column sample content

Column Heading

Side column sample content

Sample Content

Sample Content

Sample Content

Sample Content