To achieve your goal, the approach you take depends on what you are aiming for. If HTML5 is non-negotiable for you, keep in mind that it may not be fully supported across all browsers and versions. However, if you simply want to create a seamless row of images stacked together, consider the following code snippet.
<style type="text/css">
#photos {
float:left;
width:800px;
}
.imageItem{
float:left;
}
</style>
</head>
<body>
<div id="photos">
<img class="imageItem" src="http://farm8.staticflickr.com/7136/7733019900_c671c8d393_m.jpg" />
<img class="imageItem" src="http://farm8.staticflickr.com/7136/7733019900_c671c8d393_m.jpg" />
<img class="imageItem" src="http://farm8.staticflickr.com/7136/7733019900_c671c8d393_m.jpg" />
<img class="imageItem" src="http://farm8.staticflickr.com/7136/7733019900_c671c8d393_m.jpg" />
<img class="imageItem" src="http://farm8.staticflickr.com/7136/7733019900_c671c8d393_m.jpg" />
<img class="imageItem" src="http://farm9.staticflickr.com/8426/7733031344_0762136432_m.jpg"/>
<img class="imageItem" src="http://farm9.staticflickr.com/8426/7733031344_0762136432_m.jpg"/>
<img class="imageItem" src="http://farm9.staticflickr.com/8426/7733031344_0762136432_m.jpg"/>
<img class="imageItem" src="http://farm9.staticflickr.com/8426/7733031344_0762136432_m.jpg"/>
<img class="imageItem" src="http://farm9.staticflickr.com/8426/7733031344_0762136432_m.jpg"/>
</div>
</body>