The amount of spacing for the top margin of a survey page.
<survey> <surveypage>
The amount can be specified in percentages, pixels, or points.
The following displays the value of topmargin in a text stimulus:
<text sometext>
/ items= ("topmargin = <% surveypage.page3.topmargin %>")
</text>
The following displays the value of topmargin in an instruction page:
<page somepage>
topmargin = <% survey.mysurvey.topmargin %>
</page>