Have Boxes Stay Same Size On Different Screen Resolution Css

CSS Programming

As a web developer, I understand the frustration of creating a carefully designed layout, only to have it look completely different on various screen resolutions. One common issue that I’ve encountered is trying to keep boxes the same size regardless of the user’s screen size. Fortunately, with the power of CSS, there are several techniques that can help achieve this goal.

Using Fixed Pixel Sizes

One approach to keeping boxes the same size is to use fixed pixel sizes in your CSS. You can set the width and height of the box using specific pixel values. For example:

.box {
width: 200px;
height: 200px;

While this method may seem straightforward, it’s important to note that using fixed pixel sizes can lead to issues on smaller screens. The fixed size might become too large, causing the layout to break or content to be cut off. This approach works best for elements that are not critical to the overall layout and can gracefully scale on smaller screens.

Applying Percentages

An alternative to fixed pixel sizes is using percentages. By setting the width and height of the box in terms of percentages, the box will scale relative to its parent container. For example:

.box {
width: 50%;
height: 50%;

Using percentages allows for a more responsive design, as the boxes will adjust their size based on the available space. However, it’s important to consider the impact of other CSS properties and the overall layout structure, as percentages are relative to the parent container.

Utilizing Flexbox or Grid

For more complex layouts, utilizing CSS flexbox or grid can provide a flexible and robust solution for keeping boxes the same size across different screen resolutions. By defining the layout structure and alignment properties, flexbox and grid can ensure consistent box sizing while adapting to varying screen sizes.

When using flexbox or grid, it’s crucial to understand the properties such as flex-grow, flex-shrink, justify-content, align-items for flexbox, and grid-template-columns, grid-template-rows for grid, to effectively control the sizing and alignment of the boxes within the layout.


In conclusion, ensuring consistent box sizing across different screen resolutions in CSS requires a thoughtful approach. While fixed pixel sizes, percentages, and CSS flexbox/grid each have their merits, it’s essential to consider the specific requirements of the layout and the user experience on various devices. By leveraging the appropriate techniques and understanding the behavior of CSS properties, we can create visually harmonious and responsive designs that maintain the integrity of our carefully crafted layouts across different screens.