/resp/ - Responsive Design

adaptive design is like a one-size-fits-all approach:
- simpler to implement initially

@media only screen.

>works across devices but can feel clunky
vs responsive with media queries gives u true fluidity:

. container { width : 100%; max-width: ; } @media (min-device-pixel-ratio.) {} 

responsive often feels smoother, adapts better to screen sizes. adaptive might miss some nuances.
pick one or hybridize - depends on project needs and team skills