I am using plotly dash with CSS to build my dashboard. I am using CSS to define font style. I changed to a different pc from windown 10 to windows 11 but with same screen resolution of 1600 by 900.

The font size is defined by pixel like below. so why displayed font size change when changing different pc with same resolution? How to keep the diplay font size if I go to different pc with even different screen resolution? Thanks

.top-button {
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    font-size:12px;
}