Css - problem with border in QTextEdit

[Trok]

Hi, I have a problem with border in Css. It's my code:

ui->textEdit->setHtml("<div style=\"border: 1px solid black; background-color: green\">text</div>");

ui->textEdit->setHtml("<div style=\"border: 1px solid black; background-color: green\">text</div>");

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The problem is that background color gets green, but border doesn't appears.
What's wrong?