CSS not updating on mobile - css

Question

I'm creating a skills chart in a React component, where each bar starts with a short width and then it expands to a specified width after 0.5 second. The width is related to the skill level, defined in the following array:
const skills = [
{ skillName: 'JavaScript', level: 10, color: 'bca538' },
{ skillName: 'HTML', level: 9, color: 'af4336' },
{ skillName: 'CSS', level: 9, color: '2f81b7' },
]
The chart is represented in the following code:
<div className="chart__bars">
{skills.map((skill, index) => {
const { skillName, level, color } = skill
const { scale } = this.state
return (
<div
className={'chart__bars__item'}
key={skillName}
style={{
background: `#${color}`,
height: `${(100 / skills.length) * (index + 1)}%`,
width: `${scale ? level * 10 : 30}%`,
zIndex: skills.length - index,
}}
>
<h4
style={{
opacity: `${scale ? 1 : 0}`,
}}
>
{skillName}
</h4>
</div>
)
})}
</div>
After the component is mounted, it triggers a state change after 0.5 second, which should then expand each bar (logic for this is inside the style property in the code above). Here's the initial state:
state = {
scale: false,
}
And here's where I change it:
componentDidMount() {
setInterval(() => {
this.setState({ scale: true })
}, 500)
}
It works fine on the browser, but not on mobile. Using the devtools I can see the width being updated, but it won't expand. If I uncheck the tick box for the width, and then check it again, then the width expands (which should happen automatically).
The working example is on my website: https://marcelcruz.io.
Any thoughts would be much appreciated!
Thanks.