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precode.txt
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precode.txt
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
/* https://www.w3schools.com/howto/howto_js_treeview.asp */
/* Remove default bullets */
ul, #myUL {
list-style-type: none;
}
/* Remove margins and padding from the parent ul */
#myUL {
margin: 0;
padding: 0;
}
/* Style the caret/arrow */
.caret {
cursor: pointer;
user-select: none; /* Prevent text selection */
}
/* Create the caret/arrow with a unicode, and style it */
.caret::before {
content: "\25B6";
color: black;
display: inline-block;
margin-right: 6px;
}
/* Rotate the caret/arrow icon when clicked on (using JavaScript) */
.caret-down::before {
transform: rotate(90deg);
}
/* Hide the nested list */
.nested {
display: none;
}
/* Show the nested list when the user clicks on the caret/arrow (with JavaScript) */
.active {
display: block;
}
</style>
</head>
<body>