Column width within a Checkbox field

Here's my jotform: https://form.jotform.com/62318439859166

The question "What are your THREE favorite sports?" in my form is a checkbox field.  As you can see I want the checkbox choices in 3 columns, however, each column is too close together and so the words are covered by columns 2 and 3.  How do I spread out these columns in this field only?

Please inject this CSS code to your form: 

#id_13 .form-multiple-column {

    width: 100%;

}

#id_13 .form-input-wide{

    max-width: none;

}

This guide will help you to inject it: How-to-Inject-Custom-CSS-Codes

This should be the result of injecting the code: