CSS button with slanted bottom right corner

[goldfalcons]

I'm trying to achieve a rectangle button with a transparent mask over the bottom right, as per this fiddle:http://jsfiddle.net/c6gUX/\[code\]body {background: #fff;padding: 5em;}.button { color: #FFFFFF; font-family: 'RalewayRegular', Arial,sans-serif; font-size: 1em; padding: 0.5em 1.2em 0.5em 0.8em; position: relative; text-decoration: none;}.button:hover { background: linear-gradient(to bottom, #FFA13E 0px, #E56204 100%) repeat scroll 0 0 transparent; color: #FFFFFF;}.button:after { background: url(http://i.imgur.com/8Vvw1Sw.png) no-repeat scroll 0 0 transparent; bottom: -12px; content: " "; height: 38px; position: absolute; right: -12px; width: 36px; z-index: 99;}.orange-grad { background: #ffa13e; /* Old browsers */ /* IE9 SVG, needs conditional override of 'filter' to 'none' */ background: url(data:image/svg+xml;base64,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); background: -moz-linear-gradient(top, #ffa13e 0%, #ff7805 100%, #ff7805 100%); /* FF3.6+ */ background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffa13e), color-stop(100%,#ff7805), color-stop(100%,#ff7805)); /* Chrome,Safari4+ */ background: -webkit-linear-gradient(top, #ffa13e 0%,#ff7805 100%,#ff7805 100%); /* Chrome10+,Safari5.1+ */ background: -o-linear-gradient(top, #ffa13e 0%,#ff7805 100%,#ff7805 100%); /* Opera 11.10+ */ background: -ms-linear-gradient(top, #ffa13e 0%,#ff7805 100%,#ff7805 100%); /* IE10+ */ background: linear-gradient(to bottom, #ffa13e 0%,#ff7805 100%,#ff7805 100%); /* W3C */ filter: progidXImageTransform.Microsoft.gradient( startColorstr='#ffa13e', endColorstr='#ff7805',GradientType=0 ); /* IE6-8 */}\[/code\]As you can see, i've achieved it with a quite hacky way. I've untested this cross-browser and suspect IE to mess it up without a shim for :after, etc.How can I achieve this cross-browser modern? How can I make it work when overlayed onto an image so it's effectively transparent? (See below image)From PSD:

My fiddle on an image:

Logically I know that IE6/7 will need an image and i'm kinda OK with that. Word length. Sometimes the button doesn't have 'Read more', so need a 100% width solution.EditI am thinking of using a Sprite. (http://i.imgur.com/z0UYpTX.png)