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+---
+title: Add Font Icons in Editor
+description: How to insert <i> tags in the Editor for Blazor to render custom icons in the Editor content?
+type: how-to
+page_title: How to Add Font Icons in the Telerik Editor for Blazor
+slug: editor-kb-add-icons
+position: 
+tags: blazor, editor, prosemirror, schema, icon
+ticketid: 
+res_type: kb
+---
+
+## Environment
+<table>
+	<tbody>
+		<tr>
+			<td>Product</td>
+			<td>Editor for Blazor</td>
+		</tr>
+	</tbody>
+</table>
+
+
+## Description
+
+This KB article answers the following questions:
+
+* How to add custom icons in the Editor content? When adding an icon such as `<i class="fa-light fa-envelope">`, the icon's HTML disappears upon saving.
+* How can I add an `<i>` element inside the Editor?
+
+## Solution
+
+The default schema of the Telerik Editor does not include an `<i>` tag, so the Editor strips such elements automatically. To allow adding font icons through `<i>` tags in the Editor content:
+
+1. [Modify the ProseMirror schema]({%slug editor-modify-default-schema%}) to include a node for the `<i>` element.
+2. Ensure the required font icon stylesheets can affect the Editor content. The approach varies depending on the [edit mode of the Editor]({%slug editor-edit-modes-overview%}):
+    * [Iframe Edit Mode](#add-icons-in-iframe-edit-mode)
+    * [Div Edit Mode](#add-icons-in-div-edit-mode)
+
+
+### Add Icons in Iframe Edit Mode
+
+When the [Editor `EditMode` is set to `EditorEditMode.Iframe`]({%slug editor-edit-modes-iframe%}), the content area is inside an `<iframe>` element that does not apply the CSS rules from the current page.
+
+This means that you need to inject the icons stylesheet into the `<iframe>`, so the icons are properly rendered. At the time of writing (UI for Blazor **6.1.0**), [the Editor does not support injecting your CSS files into the iframe](https://feedback.telerik.com/blazor/1543925-add-the-ability-to-inject-css-files-into-the-iframe) but you can inject them with JSInterop in `OnAfterRenderAsync`.
+
+>caption Add icons in an Editor with Iframe edit mode
+
+````CSHTML
+@using Telerik.Blazor.Components.Editor
+@inject IJSRuntime js
+
+<TelerikEditor @bind-Value="@EditorValue"
+               Tools="@EditorTools"
+               Schema="schemaProvider"
+               Height="300px">
+</TelerikEditor>
+
+@code {
+    private string EditorValue { get; set; } = @"<p>Here is an example icon in the Editor content <i class='fa fa-info-circle'></i></p>";
+
+    private List<IEditorTool> EditorTools { get; set; } = new List<IEditorTool>() { new ViewHtml() };
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender)
+        {
+            await js.InvokeVoidAsync("injectEditorStylesheet");
+        }
+    }
+}
+
+@* Move JavaScript code to a separate JS file in production *@
+<script suppress-error="BL9992">
+
+    //define the icon node
+    var iconNode = {
+        attrs: {
+            class: { default: null },
+            type: { default: null },
+        },
+        group: "inline",
+        content: "text*",
+        inline: true,
+        parseDOM: [
+            {
+                tag: "i",
+                getAttrs: (dom) => ({
+                    class: dom.getAttribute("class"),
+                }),
+            },
+        ],
+        toDOM: (node) => {
+            const attrs = {
+                class: node.attrs.class
+            };
+            return ["i", attrs];
+        },
+    };
+
+    //add the icon node to the Editor ProseMirror schema
+    window.schemaProvider = (args) => {
+        const schema = args.getSchema();
+        const Schema = args.ProseMirror.Schema
+
+        let nodes = schema.spec.nodes.addToEnd("i", iconNode);
+
+        const newSchema = new Schema({ nodes });
+        return newSchema;
+    }
+
+    //inject the stylesheet for the icons, so they are properly visualized
+    function injectEditorStylesheet() {
+        var doc = document.querySelector("iframe").contentWindow.document;
+        var head = doc.querySelector("head");
+
+        var bootstrapCssLink = document.createElement("link");
+        bootstrapCssLink.href = "https://cdnjs.cloudflare.com/ajax/libs/open-iconic/1.1.1/font/css/open-iconic-bootstrap.min.css";
+        bootstrapCssLink.rel = "stylesheet";
+
+        var fontAwesomeCssLink = document.createElement("link");
+        fontAwesomeCssLink.href = "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css";
+        fontAwesomeCssLink.rel = "stylesheet";
+
+        head.appendChild(bootstrapCssLink);
+        head.appendChild(fontAwesomeCssLink);
+    };
+
+</script>
+````
+
+### Add Icons in Div Edit Mode
+
+When the [Editor `EditMode` is set to `EditorEditMode.Div`]({%slug editor-edit-modes-div%}), the content area is a `<div contenteditable="true">` element that inherits the CSS rules from the current page.
+
+This allows you to include the icon stylesheets in the `<head>` of the web page along with the other stylesheets. 
+
+>caption Add icons in an Editor with Div edit mode
+
+````CSHTML
+@using Telerik.Blazor.Components.Editor
+
+@* Just one example of including custom font icon libraries.
+Make sure to use the correct way and resources for your actual project *@
+<link href="https://cdnjs.cloudflare.com/ajax/libs/open-iconic/1.1.1/font/css/open-iconic-bootstrap.min.css" rel="stylesheet" />
+<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css" rel="stylesheet" />
+
+<TelerikEditor @bind-Value="@EditorValue"
+               Tools="@EditorTools"
+               Schema="schemaProvider"
+               EditMode="@EditorEditMode.Div"
+               Height="300px">
+</TelerikEditor>
+
+@code {
+    private string EditorValue { get; set; } = @"Here is an example icon in the Editor content <i class='fa fa-info-circle'></i>";
+
+    private List<IEditorTool> EditorTools { get; set; } = new List<IEditorTool>() { new ViewHtml() };
+}
+
+@* Move JavaScript code to a separate JS file in production *@
+<script suppress-error="BL9992">
+
+    //define the icon node
+    var iconNode = {
+        attrs: {
+            class: { default: null },
+            type: { default: null },
+        },
+        group: "inline",
+        content: "text*",
+        inline: true,
+        parseDOM: [
+            {
+                tag: "i",
+                getAttrs: (dom) => ({
+                    class: dom.getAttribute("class"),
+                }),
+            },
+        ],
+        toDOM: (node) => {
+            const attrs = {
+                class: node.attrs.class
+            };
+            return ["i", attrs];
+        },
+    };
+    debugger
+
+    //add the icon node to the Editor ProseMirror schema
+    window.schemaProvider = (args) => {
+        const schema = args.getSchema();
+        const Schema = args.ProseMirror.Schema
+
+        let nodes = schema.spec.nodes.addToEnd("i", iconNode);
+
+        const newSchema = new Schema({ nodes });
+        return newSchema;
+    }
+
+</script>
+````
+
+## See Also
+
+* [Custom Editor Tools]({%slug editor-custom-tools%})
+* [Modify the ProseMirror Schema]({%slug editor-modify-default-schema%})
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