1
.poly_dialog {
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  position: absolute;
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  left: 0; right: 0;
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  width: -moz-fit-content;
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  width: -webkit-fit-content;
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  width: fit-content;
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  height: -moz-fit-content;
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  height: -webkit-fit-content;
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  height: fit-content;
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  margin: auto;
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  border: solid;
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  padding: 1em;
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  background: white;
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  color: black;
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  display: block;
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}
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.poly_dialog:not([open]) {
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  display: none;
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}
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.poly_dialog + .backdrop {
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  position: fixed;
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  top: 0; right: 0; bottom: 0; left: 0;
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  background: rgba(0,0,0,0.1);
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}
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._poly_dialog_overlay {
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  position: fixed;
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  top: 0; right: 0; bottom: 0; left: 0;
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}
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.poly_dialog.fixed {
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  position: fixed;
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  top: 50%;
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  transform: translate(0, -50%);
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}