Javascript for incremental buttons on text entry?

I would like to have a text entry box where respondents can use buttons on either side of the text box to increase/decrease their responses by one. Ideally, I would love for it to be in the style that is represented on the Qualtrics Question Type toolbar to increase/decrease the number of choices, statements, fields, etc. (see screen grab below). Does anyone have any javascript code for this particular style?
I saw a previous thread that used code to produce a similar product but in a different style (https://www.qualtrics.com/community/discussion/6691/increment-embeded-field-data-by-1-upon-question-display). The above style would be much preferred, as the people using my survey would be using an iPad/phone and would benefit from having the larger, more distinct buttons. Any input or suggestions would be greatly appreciated! Thanks!