Update demo-simple-rt-task.html
Update demo-simple-rt-task.html

* Fixed wonky display on the instructions screen caused by a div having 'class' rather than 'style' set to 'float: right'
jspsych/jsPsych,jspsych/jsPsych,jspsych/jsPsych,wolfgangwalther/jsPsych,jspsych/jsPsych,wolfgangwalther/jsPsych,jodeleeuw/jsPsych