Guide to efficiently centering the background image in your existing Bootstrap template

I'm currently working on ensuring that the background image stays within the user's window, regardless of the device being used. While I have successfully added the background image, I am facing challenges in centering it properly. The current outcome can be seen https://i.sstatic.net/1TLdQ.png. (Please ignore the navbar for now as I'm still new to web development)

I attempted a solution commonly used in other projects without success:

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

As this solution removed the entire background image, I removed it and focused on setting the background specifically within the main-content div.

<style>
    .main-content {
        background-image: url(/images/login.jpg);
    }
</style>

How can I adjust the background size to fit the screen on any device?

If you'd like to review the code in Area/Identity/Pages/Account/Login.cshtml, here is the link: https://github.com/zhadjah9559/HelpDeskTicket/tree/4.MyTicketsView

htmlcssasp.net-corebootstrap-4frontend

Answer №1

To adjust the layout to fill the entire browser window, apply the following CSS style.

.content-wrapper {
    background-image: url(/images/background.jpg);
    background-size: contain;
}

Outcome:

https://i.sstatic.net/QWert.jpg

Answer №2

When working with CSS, one option is to adjust the dimensions of an image to fill up 100% of its container. To center the image on the page, you can add margin: auto to your styling.

<style>
    .main-content {
        background-image: url(/images/login.jpg);
        width: 100%;
        height: 100%;
        margin: auto;
        display: block;
    }
</style>

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