Draggable 98.css box

<link
  rel="stylesheet"
  href="https://unpkg.com/98.css"
  >

<style>
#windowheader {
height: auto;
width: auto;
}
#window {
height: auto;
width: auto;
position: absolute;
}
</style>

<div id="window">
<div class="window" style="width: 320px">
<div id="windowheader">
  <div class="title-bar">
    <div class="title-bar-text">A Window With A Status Bar</div>
    <div class="title-bar-controls">
      <button aria-label="Minimize"></button>
      <button aria-label="Maximize"></button>
      <button aria-label="Close"></button>
    </div>
  </div>
  </div><!--windowheader-->
  <div class="window-body">
Ugh
  </div>
  <div class="status-bar">
    <p class="status-bar-field">Press F1 for help</p>
    <p class="status-bar-field">Slide 1</p>
    <p class="status-bar-field">CPU Usage: 14%</p>
  </div>
</div>
</div><!--window id-->

<script>
//Make the DIV element draggagle:
dragElement(document.getElementById("window"));

function dragElement(elmnt) {
var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
if (document.getElementById(elmnt.id + "header")) {
/* if present, the header is where you move the DIV from:*/
document.getElementById(elmnt.id + "header").onmousedown = dragMouseDown;
} else {
/* otherwise, move the DIV from anywhere inside the DIV:*/
elmnt.onmousedown = dragMouseDown;
}

function dragMouseDown(e) {
e = e || window.event;
e.preventDefault();
// get the mouse cursor position at startup:
pos3 = e.clientX;
pos4 = e.clientY;
document.onmouseup = closeDragElement;
// call a function whenever the cursor moves:
document.onmousemove = elementDrag;
}

function elementDrag(e) {
e = e || window.event;
e.preventDefault();
// calculate the new cursor position:
pos1 = pos3 - e.clientX;
pos2 = pos4 - e.clientY;
pos3 = e.clientX;
pos4 = e.clientY;
// set the element's new position:
elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
}

function closeDragElement() {
/* stop moving when mouse button is released:*/
document.onmouseup = null;
document.onmousemove = null;
}
}
</script>