How to change the color of the user added worknotes in the activity

[Community Alums]

@Dom Gattuso 

I have written the below script as you mentioned but its giving one issue,This is not allowing the hyperlink to be visible in the worknotes of any task based records.It vanishes

function onLoad() {

    var div1 = document.getElementsByClassName('h-card');

    for (var i = 0; i < div1.length; i++) {

        if (div1[i].innerHTML.indexOf('System') == -1) {

            var html = div1[i].innerHTML;

            html = html.replace(/gold/g, "blue");

            div1[i].innerHTML = html;

        }

    }

}

[Community Alums]

@Ankur Bawiskar  Can you help me here?