the div background is limited to the exact size of the text, not filling the entire

Currently, as I work on my web page using react.js, I'm facing the challenge of implementing a full-size background. Despite my efforts, the background only occupies the size of the text within the div. Here is the snippet of code I am working with: app.js

<div className="header">
    <h1 className="title">blah blah blah</h1>
    <h4 className="greeting">blah blah blah</h4>
</div>

app.css

.header {
    background: url("./blah.png");
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    outline: 0;
    display: block;
    text-align: center;
    color: lemonchiffon;
    height: 100%;
}

I have experimented by adjusting the height to 100%, but it only increases the image slightly. It's worth noting that the width seems fine; my main concern lies in achieving the correct height.

javascripthtmlcssreactjsbackground-image

Answer №1

html { 
  background: url(images/bg.jpg) no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  background: url("./blah.png");
}

source for more information: https://css-tricks.com/perfect-full-page-background-image/

Answer №2

utilize 100vh to fill the entire screen height

Reference: https://www.w3schools.com/css/css_rwd_viewport.asp

employ the following code to eliminate default margins from the body and h1 tags.

body, h1{
  margin: 0;
}


.header {
  background: url("http://placehold.it/1920x1080");
  position: relative;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  outline: 0;
  display: block;
  text-align: center;
  color: lemonchiffon;
  height: 100vh;
  margin: 0;
}

body, h1{
  margin: 0;
}
<div class="header">
  <h1 className="title">blah blah blah</h1>
  <h4 className="greeting">blah blah blah</h4>
</div>

Answer №3

Unfortunately, it is not possible to make the element adjust dynamically to the background size.

One way to work around this limitation is to consider the following options:

  • Try inserting the image using an <img> tag and positioning the header elements on top of it using position: absolute
  • Manually adjust the height of the header to match the image size: height: 300px
  • Make the image shrink to fit the div: background-size: contain

Answer №4

To achieve a full page background, you can focus on modifying the html elements.

html {
    background: url("./custom-background.png");
   -webkit-background-size: contain;
   -moz-background-size: contain;
   -o-background-size: contain;
   background-size: contain;
}

Answer №5

When aiming to achieve a full background effect for your div, it's crucial that the div itself is set to full height. This is because setting height:100% is relative to the parent's height, necessitating that the parent element also be set to height:100%. An alternative approach involves:

body{
    background: url("./blah.png");
    position: relative;
    background-size: cover;
    background-position: center center; //added line
    background-repeat: no-repeat;
    outline: 0;
    display: block;
    text-align: center;
    color: lemonchiffon;
    min-height: 100%;
}
html{
    min-height:100%;
}

This method extends both the html and body elements to a minimum of 100% height. If you only wish to make a specific element 100% in height, consider using height: 100vh;, which makes the div 100% relative to the client screen size.

Answer №6

To set the background, simply apply it to the body:

.background {
  background: url("http://images.all-free-download.com/images/graphiclarge/black_texture_texture_background_06_hd_pictures_169901.jpg");
}

.header {
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    outline: 0;
    display: block;
    text-align: center;
    color: lemonchiffon;
    height: 100%;
}

  <body class = "background">
    <div class="header">
      <h1 class="title">blah blah blah</h1>
      <h4 class="greeting">blah blah blah</h4>
    </div>
  </body>

https://plnkr.co/edit/DDmWdwViw8aKI36EwOKM?p=preview

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