Tutorials' border line of content is overwritten by immersive reader when set high contrast on

[v-katherine]

Describe the bug Tutorials' border line of content is overwritten by immersive reader when set high contrast on

Steps to reproduce the behavior 1.Navigate to https://makecode.microbit.org/beta 2. Click More button then select high contrast on. 3. Open any tutorial. 4. Observe the content border line.

Actual behavior Tutorials' border line of content is overwritten by immersive reader when set high contrast on

Expect behavior The border line won't be overwritten by immersive reader.

Screen Recording:

Additional context 1.OS: Windows 11 Enterprise 2.Browser: Chrome 3.makecode.microbit,org version: 7.0.13 4.Microsoft MakeCode version: 10.0.23

[v-katherine]

This bug didn't reproduce in tutorials in Tool section and Turtle->Square tutorial.

[abchatra]

Stil repros.