Currently the results table takes too much white space (at least on my screen).

The following edits to either the produced HTML and the CSS for the backend make it a lot better:

HTML

• add class "table-condensed" to the table, so paddings are brought back to 50% of what they are now.
• take away the min-width=350px from the HTML

CSS
in browse.css

#responses-grid table tbody tr td.response-buttons {
text-align: left;
min-width:124px; //This line is new
}

#responses-grid > table > thead > tr > th {
min-width: 100px; //This was 125px
text-align: center;
}

#responses-grid > table > thead > tr > th#responses-grid_c2,
#responses-grid > table > thead > tr > th#responses-grid_c4,
#responses-grid > table > thead > tr > th#responses-grid_c5 {
min-width:75px;
}

#responses-grid > table > thead > tr > th#responses-grid_c7,
#responses-grid > table > thead > tr > th#responses-grid_c8 {
min-width: 175px;
}

Possibly some other edits could also benefit this page, but this at least helps. Not sure how this fits into many of the other cosiderations that I do not really know about.