where do i find the icon-tpl location? to change or replace one of the icons.

Hello Manu !
To change icon in the Introducing page. Pleas do as the following. Step 1: Log in to Dashboard > Pages > Introducing then add the following code to the “Text” frame

<div class="span4 block">
 <div class="section-img"><i class="hide-text icon-tpl-design">hide</i></div>
 <h2 class="section-content-title">Web &amp; UI Design</h2>
 <div class="content">
            Content
 </div>
 </div>
 
 <div class="span4 block">
 <div class="section-img"><i class="hide-text icon-tpl-spaceship">hide</i></div>
 <h2 class="section-content-title">Corporate Design</h2>
 <div class="content">
            Content
 </div>
 </div>
 
 <div class="span4 block">
 <div class="section-img"><i class="hide-text icon-tpl-galaxy">hide</i></div>
 <h2 class="section-content-title">iOS Development</h2>
 <div class="content">
            Content
 </div>
 </div>

Step2: Add your image to the MEDIA then copy file URL of the image. Step3: Add the following code to the style.css file

body .icon-tpl-design {
  background-image: url('Your image link') !important;
 }
 
 body .icon-tpl-spaceship {
 background-image: url('Your image link') !important;
 }
 
 body .icon-tpl-galaxy {
    background-image: url('Your image link') !important;
 }

Notice: Please change the File URL here: Your image link