Append Content Properties: -oxy-append-content /
         -oxy-prepend-content
      -oxy-append-content Property
            
            
            This property appends the specified content to the content generated by other matching
               CSS
               rules of lesser specificity. Unlike the content property, where only the
               value from the rule with the greatest specificity is taken into account, the
               -oxy-append-content property adds content to that generated by the lesser
               specificity rules into a new compound content.
            
-oxy-append-content
element:before{
    content: "Hello";
}
element:before{
    -oxy-append-content: " World!";
}The
            content shown before the element will be Hello
               World!.
         -oxy-prepend-content Property
            
            
            Prepends the specified content to the content generated by other matching CSS rules
               of
               lesser specificity. Unlike the content property, where only the value from
               the rule with the greatest specificity is taken into account, the
               -oxy-prepend-content prepends content to that generated by the lesser
               specificity rules into a new compound content.
            
-oxy-prepend-content
element:before{
    content: "Hello!";
}
element:before{
    -oxy-prepend-content: "said: ";
}
element:before{
    -oxy-prepend-content: "I ";
}The
            content shown before the element will be I said:
               Hello!.
         