Currently, I am attempting to display an information box when hovering over an element with the mouse. The issue I am facing is that the element moves, and I need to determine its left margin. However, the element does not have a margin-left property in CSS, and its position is relative, so adding a margin-left property is unnecessary. I experimented with using
element1.style.marginLeft = element2.style.marginLeftPresented here is an illustration that utilizes only CSS to exhibit a popover information box. Rather than using margin, it employs transform to relocate the box. The rationale behind this choice is that animating with transform is more efficient than with margin, resulting in a smoother animation across all devices. Additionally, this example incorporates certain WAI-ARIA attributes to enhance accessibility for screen reader users.
.container {
position: relative;
display: inline-block;
}
[role=dialog] {
position: absolute;
opacity: 0;
top: 50%;
left: 50%;
transform: translate(-50%, calc(-50% + 45px));
transition: 0.3s transform, 0.3s opacity;
background-color: #333;
color: white;
font-family: sans-serif;
padding: .5em;
width: 70%;
pointer-events: none;
font-size: .9rem;
}
.myInfo:hover+[role=dialog],
.myInfo:focus+[role=dialog] {
opacity: 1;
transform: translate(-50%, calc(-50% + 40px));
}
p {
margin: 0;
padding: 1em 2em 1em 1em;
background-color: #eee;
position: relative;
}
p img {
position: absolute;
top: 50%;
right: 10px;
transform: translateY(-50%);
}<div class="container">
<p class="myInfo" aria-describedby="infoDialog">I have more information <img src="https://image.flaticon.com/icons/svg/1828/1828885.svg" alt="Info icon" width="16" height="16" role="presentation"></p>
<div id="infoDialog" role="dialog">
More information found here
</div>
</div>Instead of keeping them separate, I simply placed both elements within a single <div> tag and it miraculously resolved the issue!
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