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web design design e-learning layout weiterbildung wmhoch3 wireframe wm鲁 weiterbildung mittelhessen flipclass icm e-learning konzept css life long learning visualisation struktur efficiency graphic design wissensvermittlung relationship lehrerbildung vzl philipps-universit盲t marburg lernplattform definition lms websites presentation balance economy html vortrag color presenting content lehre lernvideo video 辩耻补濒颈迟盲迟蝉办谤颈迟别谤颈别苍 elearning icmchat teacher training jlu gie脽en kinderzahnheilkunde master of science mittelhessen marburg icm2013 inverted classroom flipped classroom float web development position hierarchy prototypes design prototyping wireframing prototype prototyping visualisierung visualization