.wp-block-post-author{
box-sizing:border-box;
display:flex;
flex-wrap:wrap;
}
.wp-block-post-author__byline{
font-size:.5em;
margin-bottom:0;
margin-top:0;
width:100%;
}
.wp-block-post-author__avatar{
margin-right:1em;
}
.wp-block-post-author__bio{
font-size:.7em;
margin-bottom:.7em;
}
.wp-block-post-author__content{
flex-basis:0;
flex-grow:1;
}
.wp-block-post-author__name{
margin:0;
}