WordPress/wp-includes/blocks/image/style.css

.wp-block-image img{
  height:auto;
  max-width:100%;
  vertical-align:bottom;
}
.wp-block-image img,.wp-block-image.has-custom-border img{
  box-sizing:border-box;
}
.wp-block-image.aligncenter{
  text-align:center;
}
.wp-block-image.alignfull img,.wp-block-image.alignwide img{
  height:auto;
  width:100%;
}
.wp-block-image .aligncenter,.wp-block-image .alignleft,.wp-block-image .alignright,.wp-block-image.aligncenter,.wp-block-image.alignleft,.wp-block-image.alignright{
  display:table;
}
.wp-block-image .aligncenter>figcaption,.wp-block-image .alignleft>figcaption,.wp-block-image .alignright>figcaption,.wp-block-image.aligncenter>figcaption,.wp-block-image.alignleft>figcaption,.wp-block-image.alignright>figcaption{
  caption-side:bottom;
  display:table-caption;
}
.wp-block-image .alignleft{
  float:left;
  margin:.5em 1em .5em 0;
}
.wp-block-image .alignright{
  float:right;
  margin:.5em 0 .5em 1em;
}
.wp-block-image .aligncenter{
  margin-left:auto;
  margin-right:auto;
}
.wp-block-image figcaption{
  margin-bottom:1em;
  margin-top:.5em;
}
.wp-block-image .is-style-rounded img,.wp-block-image.is-style-circle-mask img,.wp-block-image.is-style-rounded img{
  border-radius:9999px;
}
@supports ((-webkit-mask-image:none) or (mask-image:none)) or (-webkit-mask-image:none){
  .wp-block-image.is-style-circle-mask img{
    border-radius:0;
    -webkit-mask-image:url('data:image/svg+xml;utf8,<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="50"/></svg>');
            mask-image:url('data:image/svg+xml;utf8,<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="50"/></svg>');
    mask-mode:alpha;
    -webkit-mask-position:center;
            mask-position:center;
    -webkit-mask-repeat:no-repeat;
            mask-repeat:initial;
    -webkit-mask-size:contain;
            mask-size:contain;
  }
}
.wp-block-image :where(.has-border-color){
  border-style:solid;
}
.wp-block-image :where([style*=border-top-color]){
  border-top-style:solid;
}
.wp-block-image :where([style*=border-right-color]){
  border-right-style:solid;
}
.wp-block-image :where([style*=border-bottom-color]){
  border-bottom-style:solid;
}
.wp-block-image :where([style*=border-left-color]){
  border-left-style:solid;
}
.wp-block-image :where([style*=border-width]){
  border-style:solid;
}
.wp-block-image :where([style*=border-top-width]){
  border-top-style:solid;
}
.wp-block-image :where([style*=border-right-width]){
  border-right-style:solid;
}
.wp-block-image :where([style*=border-bottom-width]){
  border-bottom-style:solid;
}
.wp-block-image :where([style*=border-left-width]){
  border-left-style:solid;
}

.wp-block-image figure{
  margin:0;
}