WordPress/wp-includes/blocks/file/editor.css

.wp-block-file{
  align-items:center;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  margin-bottom:0;
}
.wp-block[data-align=left]>.wp-block-file,.wp-block[data-align=right]>.wp-block-file{
  height:auto;
}
.wp-block-file .components-resizable-box__container{
  margin-bottom:1em;
}
.wp-block-file .wp-block-file__preview{
  height:100%;
  margin-bottom:1em;
  width:100%;
}
.wp-block-file .wp-block-file__preview-overlay{
  bottom:0;
  left:0;
  position:absolute;
  right:0;
  top:0;
}
.wp-block-file .wp-block-file__content-wrapper{
  flex-grow:1;
}
.wp-block-file a{
  min-width:1em;
}
.wp-block-file .wp-block-file__button-richtext-wrapper{
  display:inline-block;
  margin-left:.75em;
}