"Selecting the drop-down box triggers the CSS drop-down menu to become hidden

I am struggling with a CSS drop down block that has a select box inside. The issue I'm facing is that whenever I click on the select box, the entire block disappears. Here's a demonstration of the problem on this JSFiddle:

#ddul {
    background: #eee;
    padding: 15px;
    list-style: None;
    display: none;
    position: absolute;
    top:5px;
    left:0;
}

.dd:hover ul#ddul {
    display:block;
    position: relative;
}

I'm trying to figure out what could be causing this unexpected behavior. Any insights would be greatly appreciated. Thank you.

Update:

I've noticed that the issue persists in Chrome but not in Firefox.

Update:

The dropdown works fine in Chrome on macOS, but not on Ubuntu (Version 12.04).

cssdrop-down-menu

Answer №1

It seems that the issue arises because when an item is selected, the <ul></ul> moves back up. This causes your mouse to be positioned beneath the ul section, resulting in it no longer being hovered over and therefore the drop down becomes invisible.

A possible solution (somewhat straightforward):

1/ If you find this behavior undesirable, you can simply set a minimum height for the hovered <div>. This will ensure that your mouse remains over the div even while selecting an item from the dropdown.

DEMO: http://jsfiddle.net/goodfriend/gTbyE/4/

2/ Placing the select element on top of the menu or similar arrangement may also resolve the issue :]

Answer №2

To resolve this issue, applying the active pseudo-class to the hidden element is the solution.

ul#ddul:active,
.dd:hover ul#ddul {
    display:block;
}

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