Php 我以前是一个人做的吗？或者在.test:hover.drop2content部分中？两个都试过>我已经更新了我的答案。现在，它显示了您需要添加的CSS。感谢您的帮助，我已经用当前的内容更新了我的问题，我比以前更接近了……您不必同时添加这两种样式。你只需要一

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我以前是一个人做的吗？或者在.test:hover.drop2content部分中？两个都试过>我已经更新了我的答案。现在，它显示了您需要添加的CSS。感谢您的帮助，我已经用当前的内容更新了我的问题，我比以前更接近了……您不必同时添加这两种样式。你只需要一个。单独测试它们，看看它如何影响位置。

if (!empty($result))
  {
            echo "<div class='dropdown'>";
              echo "<span class='label label-success'>Domain Found In History</span>";
                echo " <div class='dropdown-content'>";
                    $this_database->displaySearchResults($result);
                  echo "</div>";
              echo "</div>";
  }

  function displaySearchResults($idArray)
{
  $servername = $this->servername;
  $username = $this->username;
  $password = $this->password;
  $dbname = $this->dbname;
  #Opens the MYSQL Connection
  $conn = mysqli_connect($servername, $username, $password, $dbname);
    if (!$conn)
    {
      die("Connection failed: " . mysqli_connect_error());
    }
    ## Begining of formatting of drop down table
    echo "<table class='table table-condensed'>";
     echo "<tr>";
      echo "<th>Date</th>";
        echo "<th>Time</th>";
          echo "</tr>";
          ##Loops through all the matching ID's
    for ($i = 0; $i < count($idArray); $i++)
    {
        $stmt = $conn->prepare("SELECT * FROM dns WHERE id LIKE '$idArray[$i]' ");
          $stmt->bind_param($idArray[$i]);
            $stmt->execute();
              $result = $stmt->get_result();
              ## For ever matching ID it prints out the date/time into the drop down table
              while($row=$result->fetch_assoc())
              {
                echo "<tr class='test'>";
                  echo "<td>".$row["date"]."</td>";
                    echo "<td>".$row["time"]."</td>";
                        echo "</tr>";
                      echo "<div class='drop2content'>";
                        echo "<tr>";
                          echo "<td>Test </td>";
                              echo "</tr>";
                                echo "</div>";

              }
  }
              echo "</table>";
}

 /* Show History Drop down Styling */

/* The container <div> - needed to position the dropdown content */
.dropdown
{
   position: relative;
   display: inline-block;
}

/* Dropdown Content (Hidden by Default) */
.dropdown-content
{
   display: none;
   position: absolute;
   z-index: 1;
   margin-top:2%;
   background-color:white;
}

/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content
{
   display: block;
}

.drop2content
{
  display:none;
  position:absolute;
  background-color:white;
}

.test:hover .drop2content
{
  display:block;
  position:absolute;
  left:100%;
  top:0%;

}
.test > td
 {
  position:relative;
}
.test
{
  position:relative;
}

.test {
  position:relative;
}

.test > td {
  position:relative;
}

.test:hover  .drop2content {
     display: block;
}

.table {
    display: table;
}
.row {
    display: table-row;
}
.table-header, .cell {
    display: table-cell;
    padding: 2px;
}

echo "<div class='table table-condensed'>";
echo "<div class='row'>";
echo "<div class='table-header'>Date</div>";
echo "<div>Time</div>";
echo "</div>";

echo "<div class='row test'>";
echo "<div class='cell'>".$row["date"]."</div>";
echo "<div class='cell'>".$row["time"]."</div>";
echo "<div class='drop2content'>";
echo "<div>Test </div>";
echo "</div>";
echo "</div>";

.test:hover  .drop2content {
    display: block;
}