How to Overlay Image on Background in Twitter Bootstrap Section

Question

I have an image that I would like to overlay on top of a background gradient that I have set on a section element. Both the background gradient and image I am setting in CSS and calling via a class in HTML. Originally when just using the background gradient it worked fine, but after adding the image to place over the background gradient the background gradient disappeared?

.banner-gradient {
    background: radial-gradient(circle, #ba000b, #9e0008);
    color: white;
    z-index: 0;
    }

    .banner-overlay {
    background: url("../imagery/image.png");
    max-width: 100%; 
    height: auto;
    background-position: bottom;
    background-repeat: repeat-x;
    z-index: 1;
    }

    .section-align-center {
    text-align: center;
    }

 <section class="banner-gradient banner-overlay section-align-center">
        <div class="container">
            <p>image over background gradient</p>
        </div>
    </section>

Vikas Jadhav · Answer 1 · 2018-09-21T05:11:01.773

0

Try using background-image instead of background for image.

.banner-gradient:before {
 content: " ";
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    background: -webkit-radial-gradient(top center, ellipse cover, rgba(255,255,255,0.2) 0%,rgba(0,0,0,0.5) 100%);
}

.banner-overlay {
 background: url('https://cdn.sstatic.net/Sites/stackoverflow/company/img/logos/so/so-icon.png?v=c78bd457575a') repeat;
}

.section-align-center {
    height: 400px;
    position: relative;
}

<section class="banner-gradient banner-overlay section-align-center">
    <div class="container">
        <p>image over background gradient</p>
    </div>
</section>

edited Sep 21 '18 at 05:11

answered Sep 21 '18 at 05:00

Vikas Jadhav

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The banner-gradient is covering the entire section, including the navbar at the top of the page. – Matthew Sep 21 '18 at 05:29
Try using setting height to .banner-gradient:before. – Vikas Jadhav Sep 21 '18 at 05:31
Instead of setting a fixed height to .banner-gradient:before i suggest you add position relative to .banner-gradient (and a overflow hidden optionally). So the before will always be inside the parent div. – Luuk Skeur Sep 21 '18 at 13:28

score 0 · Answer 2 · answered Sep 21 '18 at 05:39

I solved this with the help of this post. You must first place the banner-gradient in your outer div then in your inner div use banner-image.

HTML

<section class="banner-gradient section-align-center">
<div class="container banner-overlay">
    <p>image over background gradient</p>
</div>

score 0 · Answer 3 · answered Sep 21 '18 at 10:28

I would rather edit the class of the element you want the transparency in

<div class="background">
  <div class="transbox">
    <p>This is some text that is placed in the transparent box.</p>
  </div>
</div>


div.background {
    background: url('https://www.w3schools.com/css/klematis.jpg') repeat;
    border: 2px solid black;
}

div.transbox {
    margin: 30px;
    background-color: #ffffff;
    border: 1px solid black;
    opacity: 0.6;
    filter: alpha(opacity=60); /* For IE8 and earlier */
}

div.transbox p {
    margin: 5%;
    font-weight: bold;
    color: #000000;
}

https://jsfiddle.net/mergatroid/xkmyqjec/1/

How to Overlay Image on Background in Twitter Bootstrap Section

3 Answers3