Select what you need and append them into your css/custom.css

1. CX3 symbol only resize

.CX3 .event .headline.useSymbol .symbol {
  font-size: 20px; /* Or whatever you need. The default value is 75% of `.CX3 { --fontsize }` */
}

2. CX3 whole module resize

.CX3 {
  --fontsize: 22px; /* Or whatever you need. The default value is 18px */
}

3. CX3A symbol only resize

.CX3A .event .headline.useSymbol .symbol {
  font-size: 20px; /* Or whatever you need. The default value is 75% of `.CX3A { --fontsize }` */

4. CX3A whole module resize

.CX3A {
  --fontsize: 18px; /* Or whatever you need. The default value is 16px */
}

}