.w98_window {
 box-shadow:
 inset -1px -1px #000,
 inset 1px 1px #ddd,
 inset -2px -2px #888,
 inset 2px 2px #fff;
 display:block;
 background-color:#ccc;
 color:#222;
 padding:0.5em;
}
.w98_window>h1 {
 background-color:#008;
 background-image:linear-gradient(90deg,#008,#18d);
 color:#fff;
 font-family:sans-serif;
 font-size:1rem;
 line-height:1.5em;
 margin:-0.25em -0.25em 0 -0.25em;
 padding:0.25em 2em 0 0.25em;
 position:relative;
}
.w98_window>h1:after {
 background-color:#ccc;
 box-shadow:
  inset -1px -1px #aaa,
  inset 1px 1px #fff,
  inset -2px -2px #888,
  inset 2px 2px #ddd;
 color:#888;
 content:'\01f5d9';
 display:block;
 float:right;
 font-size:1em;
 height:1.125em;
 line-height:1.25em;
 text-align:center;
 padding:0.125em;
 position:absolute;
 right:0.25em;
 top:0.25em;
 width:1.125em;
}
.w98_window>details {
 margin:0.25em 0 0 0;
}
.w98_window>details>iframe{
 box-shadow:
  inset -1px -1px #fff,
  inset 1px 1px #888,
  inset -2px -2px #ddd,
  inset 2px 2px 000;
 margin:0;
 padding:2px; // to account for inset shadow
 overflow:scroll;
}