diff --git a/README.md b/README.md
index e238952a..73145574 100644
--- a/README.md
+++ b/README.md
@@ -351,6 +351,30 @@ You can embed the landscape in a website in a few different ways...
 <script src="https://landscape.openmainframeproject.org/iframeResizer.js"></script>
 ```
 
+### Adding CSS styles for an embedded landscape
+
+There are a few different ways to do this. 
+
+If you have just a few CSS style defintions to apply, you can add the `css` URL parameter with the CSS style rules; see example URI below:
+
+https://landscape.cncf.io/card-mode?category=kubernetes-training-partner&grouping=category&embed=yes&style=.sh_wrapper%7Bdisplay:none;}.mosaic.nonoss%20img{background:gold%20!important
+
+If you have a CSS file on your website you wish to maintain all the CSS defintions at, you can pass the URL to that CSS file using the `css` URL parameter; see example below ( scroll to the bottom to see the CSS applied ):
+
+https://landscape.cncf.io/card-mode?style=borderless&grouping=license&license=mit-license&embed=yes&css=https://clever-spence-1af20a.netlify.app/1.css
+
+Finally, you can also the `contentWindow.postMessage` javascript call to send style defintions after the page is fully loaded.
+
+```html
+<iframe src="https://landscape.aswf.io/pages/hosted-projects" frameborder="0" id="landscape" scrolling="no" style="width: 1px; min-width: 100%; opacity: 1; visibility: visible; overflow: hidden;"></iframe>
+<script src="https://landscape.aswf.io/iframeResizer.js"></script>
+<script>
+window.onload = function() {
+   document.getElementById("landscape").contentWindow.postMessage({type: 'css', css: 'body {background: #fff;}#embedded-footer, .main > h1 {display: none}.borderless-mode .sh_wrapper {text-align: center;text-transform: uppercase;font-size: 30px !important}.borderless-mode .sh_wrapper span {color: #ba9e5e}.column-content, .column-content [data-section-id] {justify-content: center}'},'*');
+}
+</script>
+```
+
 ## Generating a Guide
 
 A Guide can be generated by adding a file `guide.md`. `guide.md` will be mostly regular markdown with some custom behavior: