http://simonwillison.net/2010-03-20T14:32:23+00:00Simon Willison2010-03-20T14:32:23+00:002010-03-20T14:32:23+00:00https://simonwillison.net/2010/Mar/20/placeholdit/#atom-tag

<p><strong><a href="http://placehold.it/">Placehold.it</a></strong></p> Useful dynamic image generator for layout mockups—just drop an image in to a page pointing at http://placehold.it/300x200. Takes optional arguments for text, colour and format as well. <p>Tags: <a href="https://simonwillison.net/tags/design">design</a>, <a href="https://simonwillison.net/tags/images">images</a>, <a href="https://simonwillison.net/tags/layout">layout</a></p>

2007-02-06T14:03:59+00:002007-02-06T14:03:59+00:00https://simonwillison.net/2007/Feb/6/em/#atom-tag

<p><strong><a href="http://riddle.pl/emcalc/">Em Calculator</a></strong></p> Tool for working out CSS relative em values, useful for creating completely resizable layouts. <p>Tags: <a href="https://simonwillison.net/tags/css">css</a>, <a href="https://simonwillison.net/tags/ems">ems</a>, <a href="https://simonwillison.net/tags/layout">layout</a></p>