Set the Font Size for All Controls
Jaap MurreYou could also use main.style('font-size','70%') and this would achieve the same result but with one important difference. When the window size changes (e.g., on full screen or on turning your phone sideways, etc.). The font size is reset to 100% and redetermined by NeuroTask Scripting. With setfontsize(70), it is reset to 70% as intended. It is, therefore, more reliable.
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// If you are using the standard controls like input(), instruction(), select()
// the standard font size is usually too large. You can make it smaller as follows:
main.setfontsize(70); // Set the font size of all controls and text() etc. to 70%
instruction("Now you can write a long instruction and it will not run of the page");