Lea Verou

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Lea Verou
Lea Verou headshot
Born(1986-06-13)June 13, 1986
OccupationSoftware developer

Lea Verou (Greek: Λία Βέρου; born June 13, 1986) is a front end web developer, speaker and author, originally from Greece. Verou is currently a Research Assistant at MIT CSAIL, in David Karger’s Haystack group and an Invited Expert in the W3C CSS Working Group.[1]

Verou has written a book on advanced CSS for O’Reilly,[2] worked for W3C/MIT,[3] given over 60 invited talks around the world,[4] released several open source projects, and co-founded a Greek startup called Fresset Ltd (which she left in 2011), among other projects.[1][5] She has written articles for some of the biggest industry media, including A List Apart and Smashing Magazine.[6]


Verou holds a BSc in Computer Science from Athens University of Economics and Business, in which she co-organized a 4th year undergrad course about web development in the past. Her background encompasses both technical development and visual design.[1][5]



Dabblet is an open-source web application for rapid prototyping of HTML,[7] CSS and JavaScript, with syntax hilighting and inline previewers.[8] The result is saved online to a GitHub Gist to allow sharing with others.[9]


-prefix-free is a polyfill which allows current browsers to recognise the unprefixed versions of several CSS3 properties instead of requiring the developer to write out all the vendor prefixes. It reads the page's stylesheets and replaces any unprefixed properties with their prefixed counterparts recognised by the current browser.[10]

<link rel="stylesheet" href="/css/styles.css">
<script src="/path/to/prefixfree.min.js"></script>


Prism is a syntax highlighting library. It is a spin-off project from Dabblet. The project page had 23,000 unique visitors on its first day. It is used in websites including Smashing Magazine, Mozilla Developer Network, and Brendan Eich’s blog.[6][11]


Verou, Lea (June 2015). CSS Secrets (1st ed.). O'Reilly Media. p. 392. ISBN 978-1-4493-7263-7.


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