It's due to CB Bootstraps styling on the "contentheading" class, which you're using in your modules. I suggest editing your modules and changing to a different class or removing contentheading class from being styled in the below CSS. Note this won't be an issue with next CB release as the CSS will be more specific.
IN: components/com_comprofiler/plugin/templates/bootstrap/template.css
ON: Line 1105
FROM:
Code:
.contentheading,
.cb_template_bootstrap .componentheading {
line-height: 36px;
font-family: inherit;
font-weight: bold;
font-size: 24px;
color: inherit;
text-rendering: optimizelegibility;
margin-bottom: 10px;
border-bottom: 1px solid #eeeeee;
}
TO:
Code:
.cb_template_bootstrap .contentheading,
.cb_template_bootstrap .componentheading {
line-height: 36px;
font-family: inherit;
font-weight: bold;
font-size: 24px;
color: inherit;
text-rendering: optimizelegibility;
margin-bottom: 10px;
border-bottom: 1px solid #eeeeee;
}