.icon-chemical {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'b');
}
.icon-cross-domain {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'c');
}
.icon-dna {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'd');
}
.icon-expression {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'g');
}
.icon-literature {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'l');
}
.icon-ontology {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'o');
}
.icon-proteins {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'P');
}
.icon-structures {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 's');
}
.icon-systems {
    *zoom: expression(this.runtimeStyle['zoom'] = '1', this.innerHTML = 'y');
}