Is an image with solid colors placed on top of a see-through banner and

I'm facing an issue where my image, despite being set to 100% opacity, appears partially transparent and shows the banner and background image behind it. How can I resolve this problem?

Below is the snippet from my style sheet:

#banner{
    width:1280px;
    height:80px;
    line-height:100px;
    background-color:#a8a8a8;
    text-align:center;
    font-size:40px;
    color:#00FF00;
}

#content{
    width:100%;
    font-family:comic;
    font-size:14px;
    padding:10%;
    margin:auto;
    margin-top:200px;
}

#greeting{
    margin-top:-275px;
    margin-left:640px;
    font-size:25px;
}

#graphic{
    margin-left:640px;
    margin-bottom:-140px;
}

#banner{
    width:1280px;
    height:80px;
    line-height:100px;
    background-color:#a8a8a8;
    text-align:center;
    font-size:40px;
    color:#00FF00;
    opacity: 0.5;
    filter: alpha(opacity=25);
    margin-top: 20px;
}

#background{
    margin-bottom:-860px;
    opacity: 0.4;
    filter: alpha(opacity=25);
}

This is the relevant section from my html file:

<!DOCTYPE html>
<html>
<head>
    <link href="style.css" rel="stylesheet" type="text/css" align="center">
</head>

<body>      
    <div id="graphic">
        <img src="jmfiller2.png" height="150">
    </div>      

    <div id="banner"></div> 

    <div id="greeting">
    Hello! Welcome to my portfolio site! 
    </div>
    <div id="content"></div>
    <div id="background">
        <img src="background5.JPG">
    </div>

</body>
</html>
csshtmlopacity

Answer №1

Applying opacity to an element in CSS affects all the content within that element.

Simply put, setting the opacity of a banner div to 50% will make everything inside it also appear at 50% transparency.

It seems like there may be some missing HTML code here, unless you intentionally left it out.

Answer №2

Scott is spot on, the parent element has been set to have transparency, affecting all child elements with no way to make them opaque individually.

There are a couple of clever workarounds I've come across:

  1. Implement a small PNG image to mimic transparency by using:

    background:url(path/to/image/semi-transparent-background.png) repeat;

  2. You could also generate the transparent background on a pseudo-element, utilizing :before or :after.

Depending on your desired level of backwards compatibility, feel free to opt for one or both methods, possibly incorporating media queries as needed.

Answer №3

I made some adjustments to your CSS code, specifically targeting the banner to remove its transparency effect:

#content{
    width:100%;
    font-family:arial;
    font-size:16px;
    padding:7%;
    margin:auto;
    margin-top:180px;
}

#greeting{
    margin-top:-250px;
    margin-left:600px;
    font-size:22px;
}

#graphic{
    margin-left:640px;
    margin-bottom:-120px;
}

#banner{
    width:1280px;
    height:80px;
    line-height:90px;
    background-color:#333333;
    text-align:center;
    font-size:35px;
    color:#FF0000;
    margin-top: 15px;
}

#background{
    margin-bottom:-800px;
    opacity: 0.6;
    filter: alpha(opacity=30);
}

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