Editor Styles do not want to be applied

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I try to change the editor styles for Gutenberg as described here:

https://developer.projectdmc.org/block-editor/how-to-guides/themes/theme-support/#editor-styles

This is in my functions.php

add_theme_support( 'editor-styles' );
add_editor_style( 'editor-styles.css' );

This is in my editor-style.css
body p {
margin-bottom: 8px !important;
line-height: 1.6em;
}
.wp-caption .wp-caption-text {
margin: .8075em 0;
font-size: 11.2px;
text-align: left;
color: #555;
}
.wp-block {
max-width: 1300px;
}
.wp-block[data-align='wide'] {
max-width: 1300px;
}
.wp-block[data-align='full'] {
max-width: none;
}

None of this seems to show up in any way in the editor.

 

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