1. Small devices (landscape phones, 576px and up): __@media (min-width: 576px) { ... }__
2. Mediumm devices (tablets, 768px and up): __@media (min-width: 768px) { ... }__
3. Large devices (desktops, 992px and up): __@media (min-width: 992px) { ... }__
4. Extra large devices (large desktops, 1200px and up): __@media (min-width: 1200px) { ... }__