I did the deployment of a web app, and I realized that the background image that I put in the body makes it difficult to read the content, so I want to change it, and try to do the publish and rebuild again but it has not worked that way.
<body background="~/Content/fit-gif.gif">
fit-gif would be the new image or gif of back ground in the of _Layout.cshtml
You have to use the style tag to add css.
background-image to grab a background image.
background-size: cover to assign a total size to the body.
<body style='background-image: url('~/Content/fit-gif.gif');background-size: cover;'>
Updated: % co_of absolute% is added
<body style='background-image: url(@Url.Content("~/Content/fit-gif.gif"));background-size: cover;'>