Question: when activating youtube subtitles, if you try to select a word in the caption of subtitles witch identified in the DOM by `id="caption-window-1"` , the first thing noticed is that : it is not selectable, so to make it selectable, i run this script in the js console using the developer tool on chrome browser: 

```
(function() {
var caption= document.getElementById("caption-window-1");
caption.style.cursor="text";
caption.style["-webkit-user-select"]="all";
            })();

```

its turn perfectly, but the caption still moving when click on it (you can try it by your self on [YouTube](https://www.youtube.com))

so i can't select easily a word in the caption, it still moving whatever i do.

I want to disable the caption movement on onclick event any idea to fix that using javascript ?

Answer: 
Run this script in the console:

```
setInterval(make_subtitles_selectable, 250);
function make_subtitles_selectable(){
    elem=document.querySelector("span.ytp-caption-segment:not([selectable='true']");
    if(elem!=null){
        elem.style.userSelect="text";
        elem.style.cursor="text";
        elem.setAttribute("selectable", "true");
    }
    elem=document.querySelector("#caption-window-1:not([selectable='true']");
    if(elem!=null){
        elem.addEventListener("mousedown", function (event) {
            event.stopPropagation();
        }, true);
        elem.setAttribute("selectable", "true");
    }
}

```
Three years since this question active. Personally I think I have solved this question

<https://gist.github.com/iamwwc/8bf9d1ea3aa38120a9ed07014cd5d73e>

The script has done following things

1. add 'user-select:none' css to subtitle make it selectable
2. add a event listener on player, stopPropagation when click, touchstart, mouseover, mousedown event occurred

Througn this script, my translate select function now works

If you want subtitle to moveable, and move out of player, you can try the following script

<https://gist.github.com/iamwwc/341b0513f9b22b1067a479225f3d6626>

Hope my idea can help you a lot, to make a great tool for translator to work