maillawale
Hi
there is conflict from com profile extension that override the CB text style
components/com_comprofiler/plugin/templates/default/bootstrap.css
Here is code used in this file for font size you can override
cb_template {
font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
font-size: 1rem;
font-weight: 400;
line-height: 1.5;
}