Integrate the Free Shipping Bar to Retina Theme with placeholder option 

1. Select the last option under the "position" settings in the bar configuration in the App, and save the change
2. In the theme.liquid file find "<div class="header {% if settings.fixed_header %}mm-fixed-top..."
3. Copy and paste this line <div id="fsb_placeholder"></div> under it
4. In the same liquid file, find <div class="container main content">; change it to <div class="container main content fsb_ctrl">
5. Click Save
6. Open the styles.scss.liquid file, copy and paste the following code at the bottom of the file
@media only screen and (min-width: 601px) {
.fsb_ctrl{
top: 40px;
}
}
@media only screen and (max-width: 600px) {
.fsb_ctrl{
top: 0px;
}
}
7.Click Save

NOTE: Do NOT forget to select the last option under the "position" settings in the bar configuration in the App, and save the change