- https://www.webdesignerdepot.com/2017/04/the-state-of-front-end-tooling/
- https://nodejs.org/en/
- https://gruntjs.com/
- http://gulpjs.com/
- http://browserify.org/
- https://bower.io/
- https://yarnpkg.com/
- https://webpack.github.io/
- https://codekitapp.com/
- https://cssguidelin.es/
- https://www.sitepoint.com/bem-smacss-advice-from-developers/
- http://www.leemunroe.com/css-sass-scss-bem-less/
- https://github.com/davidtheclark/scalable-css-reading-list
- http://mrmrs.github.io/writing/2016/03/24/scalable-css/
- https://medium.com/webdevs/atomic-design-und-bem-komponentenbasiertes-css-f78f3c86c697
- https://medium.com/webdevs/atomic-design-und-bem-komponentenbasiertes-css-teil-2-e2fa05914398
- https://github.com/nemophrost/atomic-css
- https://www.smashingmagazine.com/atomic-design-workflow/
- https://css-tricks.com/lets-define-exactly-atomic-css/
- http://www.creativebloq.com/web-design/manage-large-scale-web-projects-new-css-architecture-itcss-41514731
- https://medium.com/@jordankoschei/how-i-shrank-my-css-by-84kb-by-refactoring-with-itcss-2e8dafee123a
- https://en.bem.info/
- http://getbem.com/
- https://www.smashingmagazine.com/2016/06/battling-bem-extended-edition-common-problems-and-how-to-avoid-them/
- https://codeburst.io/some-thoughts-on-css-frameworks-ab14e31ccb96
- https://github.com/campaignmonitor/shell/
- https://www.smashingmagazine.com/2017/03/which-responsive-design-framework-is-best/
- https://getuikit.com
- http://foundation.zurb.com/
- https://github.com/matt-harris/outline
- http://bemskel.com/
- https://sass-basis.github.io/
- http://buildwithbeard.com
- http://basscss.com/
- https://solid.buzzfeed.com/
- https://getuikit.com
- https://getmdl.io
- https://www.iotacss.com/
- http://bulma.io/
- http://materializecss.com/
- http://tachyons.io/ https://github.com/dwyl/learn-tachyons https://medium.com/@simonswiss/full-re-write-in-10-days-with-tachyons-and-functional-css-a-case-study-part-4-b565745ca1e5 http://tachy.tools/
- https://www.smashingmagazine.com/2016/12/front-end-performance-checklist-2017-pdf-pages/
- https://www.soasta.com/blog/google-mobile-web-performance-study/
- https://www.soasta.com/blog/10-pro-tips-for-managing-the-performance-of-your-third-party-scripts/
- https://developers.google.com/web/fundamentals/performance/critical-rendering-path/analyzing-crp?hl=en
- https://github.com/designs2/codeowl_design_presets
- https://github.com/designs2/codeowl_grid_control
- https://erdmann-freunde.de/css-kurs-fuer-contao.html
- https://github.com/netzmacht/contao-cache-control
- https://github.com/Contao-DD/contao-advanced-classes
- http://contao-bootstrap.netzmacht.de/komponenten/layout/grid-editor.html
- https://www.marcosimbuerger.ch/contao-kurzanleitungen.html
- https://community.contao.org/de/showthread.php?66462-Contao-3-5-inkl-installierte-Erweiterungen-auf-Contao-4-3-x-updaten&p=438350&viewfull=1#post438350
- https://github.com/composer/composer/blob/master/doc/articles/versions.md
- https://github.com/npm/npm/blob/latest/doc/misc/semver.md
- https://www.udacity.com/course/web-tooling-automation--ud892
- https://javascript30.com/
- http://pmueller.de/blog/responsive-bilder-ein-ueberblick.html
- https://www.devbridge.com/articles/bye-raster-hello-vector-3-ways-to-use-svg-easier-1/
- https://csswizardry.com/archive/
- https://css-tricks.com/snippets/css/a-guide-to-flexbox/
- https://csswizardry.com/2017/05/little-things-i-like-to-do-with-git/