Attach (recommended) or Link to PDF file here:
http://education.ohio.gov/getattachment/Topics/Special-Education/Preschool-Special-Education/ETR-Preschool-Planning-Form.pdf.aspx

- Web browser and its version: Firefox 89.0.1
- Operating system and its version: Windows 10 10.0.19043.1052
- PDF.js version: commit 5d251a3a3e7bfaa8fbfa07f0b7f9901eb3f999d9
- Is a browser extension: No

Steps to reproduce the problem:
1. Enable XFA support
2. Open form

What is the expected behavior? (add screenshot)
Shapes stay inside table cells
![image](https://user-images.githubusercontent.com/7104454/122572782-1252a580-d01c-11eb-9d0f-5fed46d6f2fe.png)

What went wrong? (add screenshot)
Shapes fall outside cells (among other issues)
![image](https://user-images.githubusercontent.com/7104454/122572885-2d251a00-d01c-11eb-8863-fa3b9969f0ea.png)

style.letterSpacing = measureToString(this.letterSpacing);
    if (this.lineThrough !== 0) {
      style.textDecoration = "line-through";
      if (this.lineThrough === 2) {
        style.textDecorationStyle = "double";
      }
    }
    
    if (this.overline !== 0) {
      style.textDecoration = "overline";
      if (this.overline === 2) {
        style.textDecorationStyle = "double";
      }
    }
    
    style.fontStyle = this.posture;
    style.fontSize = measureToString(0.99 * this.size);
    setFontFamily(this, this[$globalData].fontFinder, style);
    if (this.underline !== 0) {
      style.textDecoration = "underline";
      if (this.underline === 2) {
        style.textDecorationStyle = "double";
      }
    }
    
    style.fontWeight = this.weight;
    return style;
  }
}
class Format extends XFAObject {