title: Blinking Loading Text in R Shiny
body: <p>What do I add to the ui part of shiny that will make my #loadmessage blink?  I've seen things like this </p>
  
  <p><a href="https://stackoverflow.com/questions/16344354/how-to-make-blinking-flashing-text-with-css3">How to make blinking/flashing text with css3?</a> </p>
  
  <p>However, I'm not sure how to implement this in R.</p>
  
  <p>I have the following loading feature in my ui code:</p>
  
  <pre><code>tags$head(tags$style(type="text/css", 
                        "#loadmessage {
                         position: fixed;
                         top: 50%;
                         left: 50%;
                         ocacity: 0.50; 
                         opacity: 0.0;
                         text-align: center;
                         font-weight: bold;
                         font-size: 300%;
                         color: #000000;
                         z-index: 105;
                         }"))
  
  
    conditionalPanel(condition="$('html').hasClass('shiny-busy')",tags$div("Loading...",id="loadmessage"))
  </code></pre>