Hi,

By default, our Make theme has no function preloader. If you would like to use, please go to file html.preprocess.inc (sites/all/themes/mad_make/theme_setting/front), line 72:

//loading
$vars['preload'] = '';
if (theme_get_setting('preload') == TRUE) {
$vars['preload'] = '<div>
<div class="preloader loading">
<span class="slice"></span>
<span class="slice"></span>
<span class="slice"></span>
<span class="slice"></span>
<span class="slice"></span>
<span class="slice"></span>
</div>
</div>';
}

and change/ edit html in $vars['preload'] with a image link then customise css code.