fix: Style didn't take effect and offsetLeftToScrollContainer value is calculated incorrectly

[hzbhzb]

bugfix:
1、style did not work
demo code

const div = document.createElement('div');
div.appendChild(document.createTextNode('Green Text'));
div.className = "textcolor";
document.body.appendChild(div);
const style = document.createElement('style');
document.head.appendChild(style);
style.appendChild(document.createTextNode(`
        .textcolor {
           color: green;
         }
      `));

2、offsetLeftToScrollContainer error

[XGHeaven]

1. The commit's author email is different from your GitHub account.
2. The PR title is also not standard.

Please update them.