Ensure that the Bootstrap CSS is correctly sizing the background image to fit the screen

body {
   -webkit-font-smoothing: none;
     background: url('../img/logo.png') top left;
}

Bootstrap-CSS : I am trying to design an authentication page and need to use the image logo.png as the background. However, I am facing issues with adapting the image to fit the screen size. When I resize my window, the image remains the same size. Any assistance on resolving this would be greatly appreciated! Thank you.

Answer №1

As mentioned in the comments, one way to achieve this effect is by using the background-size property.

To illustrate, I have put together a simple sample for you...

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('https://images.pexels.com/photos/1054218/pexels-photo-1054218.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1');
  background-size: cover;
}

h1 {
  font-family: sans-serif;
  color: white;
}
<body>
  <h1> Just a title</h1>
</body>

For more details on the background-size property, visit this link.

The background-size property determines how an element's background image is sized, whether it should be stretched, left at its natural size, or constrained within the available space.

In the provided example, I used background-size: cover which scales the image proportionally to fit the container without distorting it.

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