# Bold font rendering doesn't work in web TV app

**URL:** <https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075>\
**Category:** Web App Development\
**Created:** [January 26, 2026, 5:02am UTC](https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075 "2026-01-26T05:02:25Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![langemike](https://avatars.discourse-cdn.com/v4/letter/l/7bcc69/32.png) [@langemike](https://forum.webostv.developer.lge.com/u/langemike)\
**Post date:** [January 26, 2026, 5:02am UTC](https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075/1 "2026-01-26T05:02:25Z")

</div>

I have created a hosted TV web app. But somehow, whatever I do, I cannot change the font-weight of my rendered font. Whatever I do it keeps stuck at 400.

Even when I set my font to Arial (in other words: no custom font).

It seems to happen only when I distribute my app to an IPK file. While debugging this is not an issue.

Does anyone know why? And how to fix this?

 ![Screenshot 2026-01-23 at 12.26.16](https://canada1.discourse-cdn.com/flex030/uploads/webostv/original/1X/cf31c24170f3f4a7dd2dcbb2c3311fbde7e49637.jpeg)

---

<div class="post-metadata">

**Author:** ![narae0.kim](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@narae0.kim](https://forum.webostv.developer.lge.com/u/narae0.kim)\
**Post date:** [January 26, 2026, 7:23am UTC](https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075/2 "2026-01-26T07:23:16Z")

</div>

Please make sure your fonts are referred to relative to the location of the index.html file. You can find more information in [Fonts](https://webostv.developer.lge.com/develop/getting-started/app-resources#fonts). Thank you.

---

<div class="post-metadata">

**Author:** ![langemike](https://avatars.discourse-cdn.com/v4/letter/l/7bcc69/32.png) [@langemike](https://forum.webostv.developer.lge.com/u/langemike)\
**Post date:** [January 27, 2026, 2:36am UTC](https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075/3 "2026-01-27T02:36:10Z")

</div>

But Arial is a web-safe font. Not a custom font. So a bold font should work out of the box.

---

<div class="post-metadata">

**Author:** ![narae0.kim](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@narae0.kim](https://forum.webostv.developer.lge.com/u/narae0.kim)\
**Post date:** [January 27, 2026, 3:09am UTC](https://forum.webostv.developer.lge.com/t/bold-font-rendering-doesnt-work-in-web-tv-app/28075/4 "2026-01-27T03:09:42Z")

</div>

Due to graphic quality issues, webOS TV does not support CSS for font effects(italic, bold, etc.). Please use separate fonts for each effect. Thank you.