JSFiddle - React, Tailwind, and code Playground
HTML
<div id="book_container" class="container" style="border: 1px solid red;">
<div class="row">
<div class="col-xs-5" style="border: 1px solid green;">
<div id="leftInside">
<div class="overlayImageDiv">
<div id="left_pagenumber"></div>
<div id="leftNextPage" data-current-left-page>Previous PAGE</div>
<div id="leftImageData">Here is the image name</div>
<div id="PreviousPage2" style="background-color:blue; z-index:1">Previous page</div>
</div>
</div>
</div>
<div id="coilIMG" class="col-xs-1" style="border: 1px solid blue;" id="coil">
<!--<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/2006-02-04_Metal_spiral.jpg/304px-2006-02-04_Metal_spiral.jpg" />-->
</div>
<div class="col-xs-5" style="border: 1px solid black;">
<div id="rightInside">
<div class="overlayImageDiv">
<div id="right_pagenumber">
<div id="rightNextPage" data-current-right-page>NEXT PAGE</div>
<div id="rightImageData">Here is the image name</div>
<div id="NextPage">Click Next</div>
</div>
</div>
</div>
</div>
</div>
<div class="row text-center">
<div class="col-xs-12">Footer</div>
</div>
</div>
CSS
.row{height:60px;} /* Cannot set #coilIMG to height:100% unless parent has a height */
#coilIMG{height:100%;background:url(http://tinyurl.com/hmwm7eb)center center;background-position:contain;}