What is the best way to incorporate an image sprite within table data?

Utilizing the Instant Sprite tool, I successfully created my own unique sprite image.

With the help of a repeater control, I assigned the <td> class to be arg16

Private Sub cdcatalog_ItemDataBound(sender As Object, e As RepeaterItemEventArgs) Handles cdcatalog.ItemDataBound
    If (e.Item.ItemType = ListItemType.Item) Or (e.Item.ItemType = ListItemType.AlternatingItem) Then
        Dim Cell as HtmlTableCell = TryCast(e.Item.FindControl("img"), HtmlTableCell)
        Cell.Attributes.Add("class", "text-center sprite arg16")
    End If

within the table cell

<td id="img" runat="server" class=""></td>

.sprite { background: url('sprite.png') no-repeat top left;  } 
.sprite.arg16 { background-position: 0px 0px; width: 16px; height: 16px;  } 
.sprite.aus16 { background-position: 0px -26px; width: 16px; height: 16px;  } 
.sprite.bel16 { background-position: 0px -52px; width: 16px; height: 16px;  } 
.sprite.bra16 { background-position: 0px -78px; width: 16px; height: 16px;  } 
.sprite.chl16 { background-position: 0px -104px; width: 16px; height: 11px;  } 
.sprite.cyp16 { background-position: 0px -125px; width: 16px; height: 16px;  } 
.sprite.den16 { background-position: 0px -151px; width: 16px; height: 16px;  } 

However, the outcome I received was not as expected

for each table cell. Can someone help me identify the error in my code? The "rendered css" is

   .sprite {
    background: url('sprite.png') no-repeat top left;
   }

   .sprite.arg16 {
    background-position: 0px 0px;
    width: 16px;
    height: 16px;
    }

and this is my sprite image

Answer №1

Your table cell appears to be larger than the image it contains. Make sure the cell is the correct size to avoid this issue. While I can't see all of your code, I will provide some examples below.

Here is an example where it is working correctly: http://jsfiddle.net/AU7PQ/1/

Here is an example where it is not working: http://jsfiddle.net/AU7PQ/

The difference between the two examples is that the content inside the table cell in the first fiddle causes the cell to expand beyond the specified size in the CSS.

The following code will work with your current CSS:

<table>
    <tr>
        <td class="sprite arg16">
        </td>
    </tr>
</table>

However, the following code will not work:

<table>
    <tr>
        <td class="sprite arg16">
            . <br />
            .
        </td>
    </tr>
</table>

Make sure to double-check that the content inside your cell is not causing it to expand beyond the desired size.

Answer №2

Having a visual of the entire table would be beneficial in identifying the issue, particularly regarding the padding of the table cells.

Consider adjusting the background-clip property to either padding-box or content-box. It seems like setting it to padding-box would be appropriate in this scenario.

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