Advantages of BASE UNIT over PX
In CSS, "rem" and "px" are both units of measurement used to define the size of elements on a web page, but
they have different characteristics and use cases. Here are some advantages of using "rem" over "px" in your
CSS
Relative Sizing
"rem" stands for "root em," and it is a relative unit that is based on the font
size of the root element.
This means that when you set a size in "rem," it will be relative to the base font size, making it
adaptable to changes in font size. This is particularly useful for creating responsive designs that can
scale with user preferences.
Accessibility
Using "rem" units makes it easier to create accessible websites. Users with visual
impairments can adjust their browser's font size, and your layout will respond accordingly if you've
used
"rem" units consistently.
Easy to Scale
"rem" units can be scaled up or down globally by changing the font size on the root
element. This can help in creating a consistent and scalable design without having to manually adjust
every
element size.
Maintenance
When you use "rem" units, you can maintain a more consistent and predictable sizing
system
throughout your CSS. This can make it easier to manage and update your styles, as changes to the root
font
size will affect the entire design.
Flexibility
"rem" units provide more flexibility in terms of design. You can define font sizes,
margins,
padding, and other dimensions using "rem," which will respond to changes in font size settings. This can
be
particularly useful when working with complex layouts.
Future-Proofing
As web standards evolve and devices with varying screen resolutions become more
common,
using "rem" units can help ensure your design remains adaptable to different contexts.
While "rem" has several advantages, it's important to note that there are scenarios where "px" may still
be
appropriate, such as when you need to create fixed-size elements that should not change based on font
settings. Additionally, it's common to use a combination of both "rem" and "px" units in a CSS
stylesheet to
take advantage of the benefits of each in different parts of the design.