<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.tooltip {
position: relative;
display: inline-block;
}
.tooltip .tooltiptext {
visibility: hidden;
width: 140px;
background-color: #555;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px;
position: absolute;
z-index: 1;
bottom: 150%;
left: 50%;
margin-left: -75px;
opacity: 0;
transition: opacity 0.3s;
}
.tooltip .tooltiptext::after {
content: "";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: #555 transparent transparent transparent;
}
.tooltip:hover .tooltiptext {
visibility: visible;
opacity: 1;
}
</style>
</head>
<body>
<p>Click on the button to copy the text from the text field. Try to paste the text (e.g. ctrl+v) afterwards in a different window, to see the effect.</p>