In style.css this
/* Add gray line for Likert */
form p:before {
content: '';
position:relative;
top:53px;
left:61px;
display:block;
background-color:#efefef;
height:4px;
width:888px;
}
produces grey lines in non-likert form elements (e.g. information). Perhaps Likert types such as radio could add a likert class to their <p> elements and the selector could be form p.likert:before?