You don't seem to be using a pseudo-element at the moment. Try this setting .help-tip
to .help-tip::after
and giving is content: ""
and display: inline-block
:
.help-tip::after {
content: "";
display: inline-block;
cursor: pointer;
width: 10px;
height: 10px;
background-repeat: no-repeat;
background-image: url("/assets/small-help-icon.gif");
}