The equivalent of content placeholders in Razor are sections.
In your _Layout.cshtml:
<head>
@RenderSection("Styles", required: false)
</head>
Then in your content page:
@section Styles {
<link href="https://stackoverflow.com/questions/4739907/@Url.Content("~/Content/StandardSize.css")" />
}
An alternative solution would be to put your styles into ViewBag/ViewData:
In your _Layout.cshtml:
<head>
@foreach(string style in ViewBag.Styles ?? new string[0]) {
<link href="https://stackoverflow.com/questions/4739907/@Url.Content(style)" />
}
</head>
And in your content page:
@{
ViewBag.Styles = new[] { "~/Content/StandardSize.css" };
}
This works because the view page gets executed before the layout.