Steps to resolve the white-dot border problem plaguing your dropdown menu

On my website, I've designed a drop-down menu with borders set to gray on the top, left, and right sides, while the bottom border is white. This creates a smooth, continuous border that looks great in FF3 and Chrome.

However, after upgrading to FF4 or IE9, I noticed a small white dot appearing on the left side border.

The problem seems to be how the bottom left pixel is colored differently in FF3 compared to FF4. In FF3, it matches the left border color, but in FF4, it matches the bottom border color.

This inconsistency is ruining the visual appeal of the menu. Is there a way to ensure the entire left side maintains a consistent gray border?

My goal is to have a seamless transition between the "Projects" tab and the sub-menu, creating the illusion of one continuous border. To achieve this, I made the bottom border of "Projects" white and slightly overlapped it with the sub-menu by 1px. However, this workaround results in issues with the bottom corners in FF4 and IE9.

If you hover over the "Projects" menu on , you'll see the issue on the left side border in FF4.

Here are screenshots of the drop-down menu:

Firefox 4:

Internet Explorer 9

Answer №1

Here are some suggestions to improve the appearance:

  • Eliminate the bottom border
  • Add a 1px bottom padding (or increase the existing bottom padding by 1px)
  • Change the background color to white

By implementing these changes, you can ensure that the left and right borders extend all the way down to the bottom of the element. Additionally, the white background will help blend in with the top border of the sub-menu.

Answer №2

The reason for this issue was traced back to the use of #FFF as the color for border-bottom within the following CSS rule:

.hover-menu
{
    ...
    border-bottom: solid 1px #FFF !important;
    ...
}

To resolve this, I made the following changes:

.hover-menu
{
    ...
    border-bottom: solid 0 #FFF !important;
    ...
}

Alternatively, it can also be fixed by using the following code:

.hover-menu
{
    ...
    border-bottom: none !important;
    ...
}

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