How to solve the problem of rem-element scaling through media query?

Cleverly use media query to perfectly solve the problem of rem-element scaling

The rem unit is very popular in responsive web design, but its equal-scale zooming feature also brings some challenges: the web page display effect may vary under different devices and different screen directions. This article will introduce how to effectively solve this problem by using media queries.

In practical applications, rem scaling often causes web page layout to be deformed when horizontal and vertical screens are switched. To ensure consistency, we can adjust the style according to the screen width or height via the @media rule.

For example, when the screen width is greater than or equal to 640 pixels, the maximum width of the web page content is limited to 640 pixels and displayed in the center. The CSS code is as follows:

 @media screen and (min-width: 640px) {
    html {
        max-width: 640px !important;
        margin: 0 auto !important;
    }
}

The purpose of this code is: when the screen width reaches or exceeds 640 pixels, the maximum width of html element is set to 640 pixels, and horizontal centering is achieved through margin: 0 auto . In this way, regardless of horizontal and vertical screens, the web page content can be kept within a width of 640 pixels, thereby achieving the effect of equal-scale scaling.

This media query-based solution is simple and easy to use, and can effectively improve the display consistency of rem units in different devices and screen directions. If you also encounter rem-element scaling problems, you might as well try this method.

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