liushengqiang
/
excalidraw


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <title>Excalidraw | Hand-drawn look & feel • Collaborative • Secure</title>
    <meta
      name="viewport"
      content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover, shrink-to-fit=no"
    />
    <meta name="referrer" content="origin" />

    <meta name="mobile-web-app-capable" content="yes" />

    <meta name="theme-color" content="#000" />

    <!-- General tags -->
    <meta
      name="description"
      content="Excalidraw is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them."
    />
    <meta name="image" content="og-image.png" />

    <!-- OpenGraph tags -->
    <meta property="og:url" content="https://excalidraw.com" />
    <meta property="og:site_name" content="Excalidraw" />
    <meta property="og:type" content="website" />
    <meta property="og:title" content="Excalidraw" />
    <meta
      property="og:description"
      content="Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them."
    />
    <!-- OG tags require an absolute url for images -->
    <meta
      property="og:image"
      name="twitter:image"
      content="https://excalidraw.com/og-image.png"
    />
    <meta
      property="og:image:secure_url"
      name="twitter:image"
      content="https://excalidraw.com/og-image.png"
    />
    <meta property="og:image:width" content="1280" />
    <meta property="og:image:height" content="669" />
    <meta property="og:image:alt" content="Excalidraw logo with byline." />

    <!-- Twitter Card tags -->
    <meta name="twitter:card" content="summary_large_image" />
    <meta name="twitter:title" content="Excalidraw" />
    <meta
      name="twitter:description"
      content="Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them."
    />
    <!-- OG tags require absolute url for images -->
    <meta name="twitter:image" content="https://excalidraw.com/og-image.png" />
    <link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />

    <!-- Excalidraw version -->
    <meta name="version" content="{version}" />

    <link
      rel="preload"
      href="FG_Virgil.woff2"
      as="font"
      type="font/woff2"
      crossorigin="anonymous"
    />
    <link
      rel="preload"
      href="Cascadia.woff2"
      as="font"
      type="font/woff2"
      crossorigin="anonymous"
    />

    <link
      href="%REACT_APP_SOCKET_SERVER_URL%/socket.io"
      rel="preconnect"
      crossorigin="anonymous"
    />

    <link
      rel="manifest"
      href="manifest.json"
      style="--pwacompat-splash-font: 24px Virgil"
    />

    <link rel="stylesheet" href="fonts.css" type="text/css" />

    <% if (process.env.REACT_APP_GOOGLE_ANALYTICS_ID) { %>
    <script
      async
      src="https://www.googletagmanager.com/gtag/js?id=%REACT_APP_GOOGLE_ANALYTICS_ID%"
    ></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag() {
        dataLayer.push(arguments);
      }
      gtag("js", new Date());
      gtag("config", "%REACT_APP_GOOGLE_ANALYTICS_ID%");
    </script>
    <% } %>

    <!-- FIXME: remove this when we update CRA (fix SW caching) -->
    <style>
      body {
        margin: 0;
        --ui-font: system-ui, BlinkMacSystemFont, -apple-system, Segoe UI,
          Roboto, Helvetica, Arial, sans-serif;
        font-family: var(--ui-font);
        -webkit-text-size-adjust: 100%;
        -webkit-user-select: none;
        user-select: none;
        width: 100vw;
        height: 100vh;
      }

      .visually-hidden {
        position: absolute !important;
        height: 1px;
        width: 1px;
        overflow: hidden;
        clip: rect(1px, 1px, 1px, 1px);
        white-space: nowrap; /* added line */
      }

      .LoadingMessage {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        z-index: 999;
        display: flex;
        align-items: center;
        justify-content: center;
        pointer-events: none;
      }

      .LoadingMessage span {
        background-color: var(--button-gray-1);
        border-radius: 5px;
        padding: 0.8em 1.2em;
        color: var(--popup-text-color);
        font-size: 1.3em;
      }
    </style>
  </head>

  <body>
    <noscript> You need to enable JavaScript to run this app. </noscript>
    <header>
      <h1 class="visually-hidden">Excalidraw</h1>
    </header>
    <div id="root">
      <div class="LoadingMessage">
        <span>Loading scene...</span>
      </div>
    </div>
  </body>
</html>