Could someone help me code this?

Next, youll format the grid columns. Go to the Column Styles section. Create a style rule to float all div elements whose class value starts with col- on the left margin. Set the padding around all such elements to 2%. Finally, apply the Border Box Sizing model to the content of those elements. (Note: Remember to use web extensions to provide support for older browsers.)

In the same section, create style rules fordiv elements with class names.col-1-1, .col-1-2, .col-1-3,.col-2-3, .col-1-4, and .col-3-4 to set their widths to 100%, 50%, 33.33%, 66.67%, 25%, and 75% respectively.