JSFiddle - React, Tailwind, and code Playground

HTML

<div style=' display: inline-block; border-style: solid; border-color: grey; border-width: 2px; border-radius: 4px; padding: 10px;'>
  <div style='background-color: rgb(245,245,245);  display: inline-block;'> 
    <div style='background-color:blue; width: 150px; display: inline-block; float:left;'><span style='color: white;'>a altura desta div tem que ser até o final da ultima tabela</span></div>
  
      <div style="float:left;">
        <table border='1' style='background-color: red;'>
          <tr>
            <td>ola</td>
            <td>teste</td>
          </tr>
        </table>  
       </div>
       
  </div>
</div>

<br><br>

<div style=' display: inline-block; border-style: solid; border-color: grey; border-width: 2px; border-radius: 4px; padding: 10px;'>
  <div style='background-color: rgb(245,245,245);  display: inline-block;'> 
    <div style='background-color:blue; width: 150px; display: inline-block; float:left;'><span style='color: white;'>a altura desta div tem que ser até o final da ultima tabela</span></div>
  
      <div style="float:left;">
        <table border='1' style='background-color: red;'>
          <tr>
            <td>ola</td>
            <td>teste</td>
          </tr>
        </table>  
       </div>
       
       <div style="float:left;">
        <table border='1' style='background-color: red;'>
          <tr>
            <td>ola</td>
            <td>teste</td>
          </tr>
        </table>  
       </div>
       
       <div style="float:left;">
        <table border='1' style='background-color: red;'>
          <tr>
            <td>ola</td>
            <td>teste</td>
          </tr>
        </table>  
       </div>
       
       <div style="float:left;">
        <table border='1' style='background-color: red;'>
          <tr>
            <td>ola</td>
            <td>teste</td>
          </tr>
        </table>  
       </div>
       
       <div style="float:left;">
        <table border='1' style='background-color: red;'>
...