Reviewing other themes without this problem indicated a different margin setting for the following selector:
Code: Select all
body .ui-multiselect-panel .ui-multiselect-items .ui-multiselect-item .ui-chkbox
Code: Select all
margin-top: 0;
Code: Select all
margin: 0 .5em 0 0;
This was discovered while reviewing the UI of various themes in Live Demo feature of Avalon's theme page.
I understand that I'm able to put this fix in place myself in my own CSS, but thought I should mention it here to improve this and other buggy themes at the source.