Bootstrap dropdown menus appearing behind other elements in IE7

You are facing an issue where Bootstrap dropdown menus are appearing behind other elements on your website in IE7. To resolve this, you need to understand the concept of the stacking context in CSS.

In a stacking context, elements are positioned relative to each other based on their z-index property. However, elements outside the current stacking context do not interact with it. In your case, the dropdown menus are not appearing over other elements because they are not in the same stacking context.

To fix this, you can add a z-index property to a parent element of the dropdown menus. This will create a new stacking context and allow the dropdown menus to appear over other elements. In your HTML code, the .header-top div is a suitable parent element for this:

.header-top {
    z-index: 10000;
    position: relative;
}

This will ensure that the dropdown menus have a stacking context, allowing them to appear over other elements on the page.