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<!doctype html>
<html>
<title>Reference: border-image-repeat:space</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<style>
body > div { position: relative; margin-bottom: calc(27px * 2); }
body > div > div {
position: absolute;
width: 27px;
height: 27px;
background-image: url("support/border.png");
}
.outer1 { width: 26px; height: 26px; }
.outer2 { width: 53px; height: 53px; }
.outer3 { width: 70px; height: 70px; }
.outer1 > .inner2, .outer1 > .inner4, .outer1 > .inner5, .outer1 > .inner7,
.outer2 > .inner2, .outer2 > .inner4, .outer2 > .inner5, .outer2 > .inner7,
.outer3 > .inner2, .outer3 > .inner3, .outer3 > .inner5, .outer3 > .inner6,
.outer3 > .inner7, .outer3 > .inner8, .outer3 > .inner10, .outer3 > .inner11 {
background-position: -27px 0px;
}
/*
This mocks up the drawing algorithm for border-image, by hand,
with an absolutely-positioned innerN div for each tile of a border
image component. And the components are positioned using calc()
expressions that involve: the border's thickness, the element's
content-box size, and the expected number of tiled repetitions
(e.g. 2) and gaps-between-repetitions (e.g. 3).
*/
.outer1 > .inner3, .outer1 > .inner8 { left: calc(27px + 26px); }
.outer1 > .inner6, .outer1 > .inner8 { top: calc(27px + 26px); }
.outer2 > .inner3, .outer2 > .inner5, .outer2 > .inner8 { left: calc(27px + 53px); }
.outer2 > .inner2, .outer2 > .inner7 { left: calc(27px + ((53px - 27px) / 2)); }
.outer2 > .inner4, .outer2 > .inner5 { top: calc(27px + ((53px - 27px) / 2)); }
.outer2 > .inner6, .outer2 > .inner7, .outer2 > .inner8 { top: calc(27px + 53px); }
.outer3 > .inner4, .outer3 > .inner6, .outer3 > .inner8, .outer3 > .inner12 { left: calc(27px + 70px); }
.outer3 > .inner2, .outer3 > .inner10 { left: calc(27px + ((70px - (27px * 2)) / 3)); }
.outer3 > .inner3, .outer3 > .inner11 { left: calc(70px - ((70px - (27px * 2)) / 3)); }
.outer3 > .inner5, .outer3 > .inner6 { top: calc(27px + ((70px - (27px * 2)) / 3)); }
.outer3 > .inner7, .outer3 > .inner8 { top: calc(70px - ((70px - (27px * 2)) / 3)); }
.outer3 > .inner9, .outer3 > .inner10, .outer3 > .inner11, .outer3 > .inner12 { top: calc(27px + 70px); }
</style>
<div class="outer1">
<div class="inner1"></div>
<div class="inner3"></div>
<div class="inner6"></div>
<div class="inner8"></div>
</div>
<div class="outer2">
<div class="inner1"></div>
<div class="inner2"></div>
<div class="inner3"></div>
<div class="inner4"></div>
<div class="inner5"></div>
<div class="inner6"></div>
<div class="inner7"></div>
<div class="inner8"></div>
</div>
<div class="outer3">
<div class="inner1"></div>
<div class="inner2"></div>
<div class="inner3"></div>
<div class="inner4"></div>
<div class="inner5"></div>
<div class="inner6"></div>
<div class="inner7"></div>
<div class="inner8"></div>
<div class="inner9"></div>
<div class="inner10"></div>
<div class="inner11"></div>
<div class="inner12"></div>
</div>
</html>
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