I am trying to resize the popup window size to allow for the wider edit fields. I am using the Find, Edit, Filter from ArcGIS Online-Make a Web Application
You can modify the info using css. For example something like this might work:
.atiAttributes .dijitTextBox{ height:40px;}
You can experiment with the styles using the Inspect CSS tools available with the debugging tools provided by most browsers. Here are some details on how to do this with Chrome: Editing styles - Google Chrome