diff --git a/packages_rs/nextclade-web/package.json b/packages_rs/nextclade-web/package.json
index 7da09b99f..e6fca04fb 100644
--- a/packages_rs/nextclade-web/package.json
+++ b/packages_rs/nextclade-web/package.json
@@ -143,6 +143,7 @@
"react-resize-detector": "7.0.0",
"react-select": "5.3.0",
"react-toggle": "4.1.2",
+ "react-use-wizard": "2.2.3",
"react-virtualized-auto-sizer": "1.0.6",
"react-virtualized-select": "3.1.3",
"react-window": "1.8.7",
diff --git a/packages_rs/nextclade-web/src/components/About/About.tsx b/packages_rs/nextclade-web/src/components/About/About.tsx
new file mode 100644
index 000000000..7f15d6fde
--- /dev/null
+++ b/packages_rs/nextclade-web/src/components/About/About.tsx
@@ -0,0 +1,7 @@
+import React from 'react'
+
+import AboutContent from './AboutContent.mdx'
+
+export function About() {
+ return
+}
diff --git a/packages_rs/nextclade-web/src/components/About/AboutContent.mdx b/packages_rs/nextclade-web/src/components/About/AboutContent.mdx
new file mode 100644
index 000000000..9f97e267a
--- /dev/null
+++ b/packages_rs/nextclade-web/src/components/About/AboutContent.mdx
@@ -0,0 +1,43 @@
+import { CladeSchema } from 'src/components/Main/CladeSchema.tsx'
+
+## What is Nextclade?
+
+Nextclade is a tool that performs genetic sequence alignment, clade assignment, mutation calling, phylogenetic placement, and quality checks for SARS-CoV-2, Influenza (Flu), Mpox (Monkeypox), Respiratory Syncytial Virus (RSV) and other pathogens.
+
+Nextclade identifies differences between your sequences and a reference sequence, uses these differences to assign your sequences to clades, reports potential sequence quality issues in your data, and shows how the sequences are related to each other by placing them into an existing phylogenetic tree (we call it "phylogenetic placement"). You can use the tool to analyze sequences before you upload them to a database, or if you want to assign Nextstrain clades to a set of sequences.
+
+To analyze your data, drag a fasta file onto the upload box or paste sequences into the text box. These sequences will then be analyzed in your browser - data never leave your computer. Since your computer is doing the work rather than a server, it is advisable to analyze at most a few hundred sequences at a time.
+
+The Nextclade app and algorithms are opensource. The code is available on [GitHub](https://github.com/nextstrain/nextclade). The user manual is available at [docs.nextstrain.org/projects/nextclade](https://docs.nextstrain.org/projects/nextclade).
+
+
+### What are the SARS-CoV-2 clades?
+
+Nextclade was originally developed during COVID-19 pandemic, primarily focused on SARS-CoV-2. This section describes clades with application to SARS-CoV-2, but Nextclade can analyse other pathogens too.
+
+
+
+Since its emergence in late 2019, SARS-CoV-2 has diversified into several different co-circulating variants. To facilitate discussion of these variants, we have grouped them into __clades__ which are defined by specific signature mutations.
+
+We currently define more than 30 clades (see [this blog post](https://nextstrain.org/blog/2021-01-06-updated-SARS-CoV-2-clade-naming) for details):
+
+- 19A and 19B emerged in Wuhan and have dominated the early outbreak
+- 20A emerged from 19A out of dominated the European outbreak in March and has since spread globally
+- 20B and 20C are large genetically distinct subclades 20A emerged in early 2020
+- 20D to 20J have emerged over the summer of 2020 and include three "Variants of Concern" (VoC).
+- 21A to 21F include the VoC __delta__ and several Variants of Interest (VoI).
+- 21K onwards are different clades within the diverse VoC __omicron__.
+
+Within Nextstrain, we define each clade by its combination of signature mutations. You can find the exact clade definition in [github.com/nextstrain/ncov/defaults/clades.tsv](https://github.com/nextstrain/ncov/blob/master/defaults/clades.tsv). When available, we will include [WHO labels for VoCs and VoIs](https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/).
+
+Learn more about how Nextclade assigns clades in the [documentation](https://docs.nextstrain.org/projects/nextclade/en/stable/user/algorithm/).
+
+### Other pathogens
+
+Besides SARS-CoV-2, we provide Nextclade datasets to analyze the following other pathogens:
+
+ * Seasonal Influenza viruses (HA and NA for A/H3N2, A/H1N1pdm, B/Vic, and B/Yam)
+ * Mpox virus (the overall clade structure, as well as fine-grained lineages within the recent sustained human-to-human transmission)
+ * Respiratory Syncytial Virus (RSV) (subtypes A and B)
+
+You can also put together your own dataset to analyse other pathogens.
diff --git a/packages_rs/nextclade-web/src/components/Common/Dropdown.tsx b/packages_rs/nextclade-web/src/components/Common/Dropdown.tsx
index 51fb7ce2e..f903bcbb3 100644
--- a/packages_rs/nextclade-web/src/components/Common/Dropdown.tsx
+++ b/packages_rs/nextclade-web/src/components/Common/Dropdown.tsx
@@ -45,6 +45,7 @@ export function Dropdown({
value={value}
isMulti={false}
onChange={handleChange}
+ menuPortalTarget={document.body}
{...restProps}
/>
)
diff --git a/packages_rs/nextclade-web/src/components/Common/Markdown.tsx b/packages_rs/nextclade-web/src/components/Common/Markdown.tsx
index e9c0e22d1..8c5766e8e 100644
--- a/packages_rs/nextclade-web/src/components/Common/Markdown.tsx
+++ b/packages_rs/nextclade-web/src/components/Common/Markdown.tsx
@@ -3,25 +3,21 @@ import ReactMarkdown from 'react-markdown'
import remarkGfm from 'remark-gfm'
import rehypeRaw from 'rehype-raw'
import rehypeSanitize from 'rehype-sanitize'
-import { LinkExternal } from 'src/components/Link/LinkExternal'
import { useAxiosQuery } from 'src/helpers/useAxiosQuery'
import { LOADING } from 'src/components/Loading/Loading'
+import { mdxComponents } from 'src/mdx-components'
const REMARK_PLUGINS = [remarkGfm]
const REHYPE_PLUGINS = [rehypeRaw, rehypeSanitize]
-const MD_COMPONENTS = {
- a: LinkExternal,
-}
-
export interface MarkdownProps {
content: string
}
export function Markdown({ content }: MarkdownProps) {
return (
-
+
{content}
)
diff --git a/packages_rs/nextclade-web/src/components/Common/SearchBox.tsx b/packages_rs/nextclade-web/src/components/Common/SearchBox.tsx
index c5b634d7a..17104a884 100644
--- a/packages_rs/nextclade-web/src/components/Common/SearchBox.tsx
+++ b/packages_rs/nextclade-web/src/components/Common/SearchBox.tsx
@@ -79,6 +79,7 @@ export function SearchBox({ searchTitle, searchTerm, onSearchTermChange, ...rest
- {title}
+ {title}
+ {FileUploadOrFileInfo}
diff --git a/packages_rs/nextclade-web/src/components/FilePicker/FilePickerAdvanced.tsx b/packages_rs/nextclade-web/src/components/FilePicker/FilePickerAdvanced.tsx
index 2de0544e0..67c623f3a 100644
--- a/packages_rs/nextclade-web/src/components/FilePicker/FilePickerAdvanced.tsx
+++ b/packages_rs/nextclade-web/src/components/FilePicker/FilePickerAdvanced.tsx
@@ -37,7 +37,7 @@ export function FilePickerAdvanced() {