1. Flat design, material design, and responsive web design were popular trends in 2015 that focused on simple, clean interfaces optimized for mobile. 2. Design elements like flat graphics, geometric shapes, line icons, cards, and layers were commonly used with simple color schemes and blur effects. 3. Interfaces were optimized to be thumb-friendly, with features like off-canvas menus and swipe interactions.

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THE TREND
animationflat
geometric elements
off-canvas
Responsive Web Design
line icons
material d
card d
wearable
blurry b
swipe thumb-focused
layers and d
simple color s
2015parallax

11. Flat Design
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Flat Design
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Flat Design
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Flat Design
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17. skeuomorphism flat flat-ghost flat-ios & windows8

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Simple Color S
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Line icons
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25. 27

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Blurry B
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28. 30

29. Material Design
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Layers and D
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Card D
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43. 45

44. Mobile First Design
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45. 47
Responsive Web Design
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46. RWD
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47. RWD
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48. RWD
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49. RWD
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50. 52
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51. 53
Adaptive Web D
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GSS Cloud

69. Vitals Mobile

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VIdegree Mobile Prototype
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74. 75