Border around my whole webpae

I’m not sure that this a straightforward question. There are techniques to achieve it but it’s probably best if you google something like border body

Or maybe you just mean something like:

body {
  border: 12px solid #42c5fc;
}

first many thanks to you..
i’ve search this question in google,youtube,stack overflow ehow and wikihow…but ans is zero
i mean that i want a border around my whole webpage that includes header,footer content area,and sidebar at atime…
thanks..plz reply…

So try:

.site {
    border: 10px solid #F00;
}

many many many many thanks andrew..it is solved.