Mobile (Smartphone) max-width: 480px.
What width is considered mobile?
What is min-width and max width?
Max-width and min-width can be used together to target a specific range of screen sizes. @media only screen and (max-width: 600px) and (min-width: 400px) {...} The query above will trigger only for screens that are 600-400px wide. This can be used to target specific devices with known widths.
Should I use min-width or max width?
When to use which: min-width or max-width. If you are designing your website for smaller devices first then set your default CSS breakpoints with min-width and adjust for larger devices accordingly. Meanwhile, if you are designing for larger devices first then use max-width and then tune for smaller devices accordingly ...