Basic HTML for radio & checkbox markup

checkboxes-alt.haml

%fieldset
	%legend
		%label{:for => "checkbox-group"} Group of Checkboxes
	.fields.inline
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-1", :name => "checkbox-group", :value => "", "aria-checked" => "false"}
			%label{:for => "checkbox-1"} First Checkbox
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-2", :name => "checkbox-group", :value => "", "aria-checked" => "true", "aria-labeledby" => "l-checkbox-2"}
			%label{:for => "checkbox-2"} Second Checkbox
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-3", :name => "checkbox-group", :value => "", "aria-checked" => "false", "aria-labeledby" => "l-checkbox-3"}
			%label{:for => "checkbox-3"} Third Checkbox

checkboxes.haml

.item
	.fields.vertical // .vertical, .inline, 
		%label{:for => "checkbox-group"} Group of Checkboxes
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-1", :name => "checkbox-group", :value => "", "aria-checked" => "false"}
			%label{:for => "checkbox-1"} First Checkbox
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-2", :name => "checkbox-group", :value => "", "aria-checked" => "true", "aria-labeledby" => "l-checkbox-2"}
			%label{:for => "checkbox-2"} Second Checkbox
		.field.checkbox
			%input{:type => "checkbox", :id => "checkbox-3", :name => "checkbox-group", :value => "", "aria-checked" => "false", "aria-labeledby" => "l-checkbox-3"}
			%label{:for => "checkbox-3"} Third Checkbox

Depending on your document structure you can use something like this. I use a handful of classes for form element alignment (.inline, .vertical, .overlay). If you're concerned about screen readers there are a handful of ARIA tags you can use to make sure the form reads well.

I generally wrap my checkbox/radio inputs with the label and we’re working on a pull request for simple_form to allow it as an option but they’re pushing back. I was hoping you did the same and had a good resource as to why :)

I do like the vertical/inline bit.