Div not auto expanding due to dynamically loaded content

I have a bit of an issue...

Ive made a div, and normally, it expands to suit the height of its contents fine, however... Now i have a problem.

My content is being returned from a Sql statment, and its not expanding to suit its height, a working non dynamic version is

#commentblock {
    min-height:50px;
    width:90%;
    margin:20px auto;
    padding:10px;
    border:1px solid #999;
}

My code is as follows (its in a for loop making a new div for each instance)

// Now lets query to grab the responses to this fault
$querytwo = "SELECT * FROM comments WHERE faultid=".$fid;

// execute query
$resulttwo = mysql_query($querytwo) or die ("Error in query: $querytwo. ".mysql_error());

// see if any rows were returned
if (mysql_num_rows($resulttwo) > 0) {
    // print them one after another
    while($row = mysql_fetch_row($resulttwo)) {
        // lets make this render then
        echo "<div id='commentblock'>";
        echo "<div class='loggedby'>Logged By : <span>".$row[4]."</span><p class='contactno'>Entered : <span>".$row[3]."</span></开发者_高级运维p></div>";
        echo "<div class='info'><span>".$row[2]."</span></div>";
        echo "</div>";
    }       
}

// free result set memory
mysql_free_result($resulttwo);

// close connection
mysql_close($connection);

Thanks in advance :)

Got it, the content was in a span which was inheriting a floating attribute. Removed the float - now its all fine :)

It might not be to do with dynamic code, but invalid HTML.

You are using:

id='commentblock'

... in a loop, which create multiple, identical IDs on the same page, which is not valid.

You should change to:

class='commentblock'

and reference you CSS as:

.commentblock

... instead of:

#commentblock