As I stated, the starter page looks normal when I preview it in a browser but it distorted where the large place holder in within my Mac.
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Simple Theme</title>
<link href="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/css/multiColumnTemplate.css" rel="stylesheet" type="text/css">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<header>
<div class="primary_header">
<h1 class="title"> SIMPLE</h1>
</div>
<nav class="secondary_header" id="menu">
<ul>
<li>ABOUT</li>
<li>WORK</li>
<li>PORTFOLIO</li>
<li>SERVICES</li>
<li>CLIENTS</li>
<li>CONTACT</li>
</ul>
</nav>
</header>
<section>
<h2 class="noDisplay">Main Content</h2>
<article class="left_article">
<h3>content heading</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.</p>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.</p>
</article>
<aside class="right_article"><img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/placeholder.jpg" alt="" width="400" height="200" class="placeholder"/> </aside>
</section>
<div class="row">
<div class="columns">
<p class="thumbnail_align"> <img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" alt="" class="thumbnail"/> </p>
<h4>TITLE</h4>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud.</p>
</div>
<div class="columns">
<p class="thumbnail_align"> <img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" alt="" class="thumbnail"/> </p>
<h4>TITLE</h4>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud.</p>
</div>
<div class="columns">
<p class="thumbnail_align"> <img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" alt="" class="thumbnail"/> </p>
<h4>TITLE</h4>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud.</p>
</div>
<div class="columns">
<p class="thumbnail_align"> <img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" alt="" class="thumbnail"/> </p>
<h4>TITLE</h4>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud.</p>
</div>
</div>
<div class="row blockDisplay">
<div class="column_half left_half">
<h2 class="column_title">LEFT COLUMN</h2>
</div>
<div class="column_half right_half">
<h2 class="column_title">RIGHT COLUMN</h2>
</div>
</div>
<div class="social">
<p class="social_icon"><img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" width="100" alt="" class="thumbnail"/></p>
<p class="social_icon"><img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" width="100" alt="" class="thumbnail"/></p>
<p class="social_icon"><img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" width="100" alt="" class="thumbnail"/></p>
<p class="social_icon"><img src="file:///Macintosh HD/Users/mypersonalnamedeleted/Library/Application Support/Adobe/Dreamweaver CC 2017/en_US/Configuration/Temp/Assets/eam119187a5.TMP/images/bkg_06.jpg" width="100" alt="" class="thumbnail"/></p>
</div>
<footer class="secondary_header footer">
<div class="copyright">©2015 - <strong>SIMPLE Theme</strong></div>
</footer>
</div>
</body>
</html>
mypersonalnamedeleted
The file path shows your site is not defined.
If it were defined, DW would reconcile the file path and point to assets in your local site folder like this:
DW's Design View is not a browser. It's mainly for quick editing of content and should not be regarded is a reliable rendering. At best, it's an approximation because it has not been updated since Macromedia days and cannot handle advanced CSS.