#block-cmi-help-cmi-help-block .advanced-help-link {
width: 20px;
height: 50px;
background-size: 20px; 
  background:url('/sites/all/modules/custom/cmi_help/images/questionmark.png') no-repeat top left;
  margin-top: 0px;
background-image:url('/sites/all/modules/custom/cmi_help/images/questionmark.png');
}