common css media queries

CSS
/* Mobile first, baby! */
/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {}
/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {}
/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {}
Source

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