PX and REM Conversion Tool Instructions

Function Overview
This tool is designed for front-end developers and designers to quickly convert pixels (PX) to relative units (REM), or vice versa. REM units are based on the font size of the root element (HTML), and can be effectively adapted to different screen sizes, which is a key tool to achieve responsive layout.

Core Functions

1. Bi-directional conversion： Support PX to REM or REM to PX to meet diversified needs.
2. Customised base value： Default root font size is 16px (browser standard), you can freely adjust the base value (such as 10px/14px, etc.).
3. Real-time calculation： Generate results automatically after inputting values, no need to submit manually.
4. Compatibility Tips： Automatically mark the conversion results under different base values to avoid layout deviation.

How to use

1. Input the PX value of the HTML root element in the "Base Size" field (if not set, the default is 16px). 2.
2. Fill in the "Input Value" field with the PX or REM value to be converted. 3.
3. The result area will display the converted value in real time and support one-click copy. Application Scenarios
- Responsive web development: quickly adapt to mobile and desktop layouts.
- Design restoration: accurately match the PX size provided by the designer.
- Team Collaboration: Unify the CSS unit specification in the project, reduce the communication cost. Cautions
- If the project uses non-standard root font size (e.g. 62.5%), you need to synchronise the tool to modify the base value.
- The conversion results should be used in conjunction with CSS media queries to achieve the effect of multi-adaptation.