s="va">tags</span><span class="op">$</span><span class="fu">div</span><span class="op">(</span>
    style <span class="op">=</span> <span class="st">"position: relative;"</span>,
    <span class="fu">plotOutput</span><span class="op">(</span><span class="st">"alluvial_plot"</span>, height <span class="op">=</span> <span class="st">"500px"</span>, 
               hover <span class="op">=</span> <span class="fu">hoverOpts</span><span class="op">(</span>id <span class="op">=</span> <span class="st">"plot_hover