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w3tweaks.com is the best place to discover front-end code. W3 Tweaks is a programming blog where users can find demos, tutorials and code snippet. Demos, tutorials and code snippet are focused on Programming, Jquery, Ajax, PHP, Web Design, Javascript, MySQL, AngularJs, Bootstrap, BackboneJs, CSS, HTML, android, IOS. Free examples are taken from codepen.io, w3tweaks developer and from other free resources.