Accordion's animate removes the outline

[Wilsonruan]

Description

.focusOutline:focus-visible {
outline: 3px solid green;
outline-offset:5px;
z-index:99;
}
I have added Outline:focus-visible and animate to the accordion. During the animation/transition the outline outside of the accordion disappears.

https://codepen.io/wilson-ruan/pen/yLjwyNO

Reproduction Steps

Keyboard tab into the header and hit enter.

Relevant Logs

.focusOutline:focus-visible {
      outline: 3px solid green; 
      outline-offset:5px;
      z-index:99;
}

Browser(s) Affected

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OS(s) Affected

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Device(s) Affected

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AMP Version Affected

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