How to highlight textbox border during click cursor..?

hi I tried some code for changing border of textbox

<input type="text" id="txtsearch" onclick="changeborder()" />

function changeborder() {
         document.getElementById("txtsearch").style.borderColor = "red";
     }

Here I'm giving how we change border color whn user click on textbox.

Ig you understand you can try your own code for it.

You want same color of google thn view source of google webpage thn see which color they using its simple.

All the Best

how to chang textbox bordor color in C# please give me details ,