title: How to make a responsive image gallery?
body: <p>I'm trying to create a responsive gallery of fixed-width images.  I need the number of images on a given row to vary based on the width of the browser window, and the row of images to be centered on the page.</p>
  
  <p>Either of two ways is fine.  There can be a constant number of pixels between each image (10px for instance), and the container div can change width to match.  Or the container div can be fixed-width, and the distance between the images varies to fit.</p>
  
  <p>Thanks in advance</p>