Level: Intermediate
Rather than targeting specific devices, effective breakpoints are chosen based on where your actual content and layout genuinely need to change.
Let Content Determine Breakpoints, Not Popular Device Sizes
Choosing breakpoints based on where your specific layout starts to look cramped or awkward is more reliable than targeting the exact dimensions of currently popular devices, which change constantly.
Test the Full Range Between Breakpoints, Not Just at Them
A layout can look fine exactly at a defined breakpoint but break awkwardly somewhere in between two breakpoints if that range isn't also checked.
Fewer, Well-Chosen Breakpoints Are Easier to Maintain
An overly complex system with many breakpoints becomes harder to test and maintain consistently than a simpler, more deliberate set.
Next step: Use the Screen Resolution Simulator to test your layout across a full range of viewport widths to identify exactly where it starts to break down.