WordPress/wp-includes/blocks/rss/editor-rtl.min.css

.wp-block-rss li a>div{display:inline}.wp-block-rss__placeholder-form{align-items:stretch;display:flex}.wp-block-rss__placeholder-form>*{margin-bottom:8px}@media (min-width:782px){.wp-block-rss__placeholder-form>*{margin-bottom:0}}.wp-block-rss__placeholder-input{align-items:stretch;display:flex;flex-grow:1}.wp-block-rss__placeholder-input .components-base-control__field{align-items:stretch;display:flex;flex-grow:1;margin:0 0 0 8px}