Hi,
to solve this please open your dnd-shortcodes.css
(you can find it here \wp-content\themes\revelance\css\dnd-shortcodes.css)
and on line 47 you have this code:
.dnd_section_dd header h3{
font-family: 'Open Sans';
font-weight: 300;
display: inline-block;
color: #333;
text-transform: uppercase;
font-size: 36px;
line-height: 36px;
margin-bottom: 49px;
position: relative;
padding-bottom: 43px;
}
Just remove this text-transform: uppercase;
and all sections intro text should work normal :)
Kind regards