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MozOpacity style property

Browser support:

Sets or retrieves the opacity level. For a cross-browser solution, use the opacity property in Firefox, Google Chrome, Safari and Opera, and the filter property ('filter:Alpha(opacity=50)') in Internet Explorer.

Syntax:

object.MozOpacity;

You can find the related objects in the Supported by objects section below.

This property is read/write.

CSS page for this property: -moz-opacity

Possible values:

The type of this property is string.

One of the following values:

inherit

Takes the value of this property from the computed style of the parent element.

opacity (floating-point [0-1])

Floating-point number [0-1] .

Default: 1.

Example HTML code 1:

This example illustrates the use of the -moz-opacity property:

<head>
    <style>
        .example {
            -moz-opacity: 0.5;
        }
    </style>
</head>
<body>
    <a class="example">This text has -moz-opacity: 0.5</a>
</body>

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Example HTML code 2:

This example illustrates the use of the MozOpacity property in JavaScript:

<head>
    <script type="text/javascript">
        function ChangeFloatEdge (selectTag) {
            // Returns the index of the selected option
            var whichSelected = selectTag.selectedIndex;

            // Returns the text of the selected option
            var opacity = selectTag.options[whichSelected].text;

            var anchor = document.getElementById ("myAnchor");
            if ('MozOpacity' in anchor.style) {
                anchor.style.MozOpacity = opacity;
            } else {
                alert ("Your browser doesn't support this example!");
            }
        }
    </script>
</head>
<body>
    <a id="myAnchor">Change this element's opacity!</a>

    <select onchange="ChangeFloatEdge (this);" size="7">
        <option />0
        <option />0.1
        <option />0.3
        <option />0.5
        <option />0.7
        <option />0.9
        <option selected="selected" />1
    </select>
</body>