Only call OptionallyBreak() if we may break at white-space.
Differential Revision: https://phabricator.services.mozilla.com/D33718
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1556709
gecko-commit: d4a63f3c0ef6f9cc223a6ba986ab828954e333e0
gecko-integration-branch: mozilla-inbound
gecko-reviewers: jfkthame
diff --git a/css/css-sizing/clone-nowrap-intrinsic-size-bidi-ref.html b/css/css-sizing/clone-nowrap-intrinsic-size-bidi-ref.html
new file mode 100644
index 0000000..1c12148
--- /dev/null
+++ b/css/css-sizing/clone-nowrap-intrinsic-size-bidi-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Reference: min/max-content size on box-decoration-break:clone inline box with bidi text and white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: pre;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+ -webkit-box-decoration-break: clone;
+ box-decoration-break: clone;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div><span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa</div>
+</f>
+
+<f class="max">
+<div><span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa</div>
+</f>
diff --git a/css/css-sizing/clone-nowrap-intrinsic-size-bidi.html b/css/css-sizing/clone-nowrap-intrinsic-size-bidi.html
new file mode 100644
index 0000000..32601bb
--- /dev/null
+++ b/css/css-sizing/clone-nowrap-intrinsic-size-bidi.html
@@ -0,0 +1,110 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Test: min/max-content size on box-decoration-break:clone inline box with bidi text and white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+ <link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content">
+ <link rel="help" href="https://drafts.csswg.org/css-break-3/#break-decoration">
+ <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1556709">
+ <link rel="match" href="clone-nowrap-intrinsic-size-bidi-ref.html">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: nowrap;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+.min > div {
+ width: -moz-min-content;
+ width: -webkit-min-content;
+ width: min-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+ -webkit-box-decoration-break: clone;
+ box-decoration-break: clone;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div>
+ <span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa </div>
+</f>
+
+<f class="min">
+<div>
+ <span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa </div>
+</f>
diff --git a/css/css-sizing/clone-nowrap-intrinsic-size-ref.html b/css/css-sizing/clone-nowrap-intrinsic-size-ref.html
new file mode 100644
index 0000000..04dacc6
--- /dev/null
+++ b/css/css-sizing/clone-nowrap-intrinsic-size-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Reference: min/max-content size on box-decoration-break:clone inline box w. white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: pre;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+ -webkit-box-decoration-break: clone;
+ box-decoration-break: clone;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div><span>aaa</span><span>aaa</span>
+</div>
+<div><span>aaa</span>aa<span>aaa</span>
+</div>
+<div><span>aaa</span> <span>aaa</span>
+</div>
+<div><span>aaa </span><span>aaa</span>
+</div>
+<div><span>aaa</span><span> aaa</span>
+</div>
+<div><span>aaa</span> aa<span>aaa</span>
+</div>
+<div><span>aaa </span>aa<span>aaa</span>
+</div>
+<div><span>aaa</span>aa<span> aaa</span>
+</div>
+<div><span>aaa</span> aa <span>aaa</span>
+</div>
+<div><span>aaa</span>aa <span>aaa</span>
+</div>
+<div><span>aaa</span>aa</div>
+</f>
+
+<f class="max">
+<div><span>aaa</span><span>aaa</span>
+</div>
+<div><span>aaa</span>aa<span>aaa</span>
+</div>
+<div><span>aaa</span> <span>aaa</span>
+</div>
+<div><span>aaa </span><span>aaa</span>
+</div>
+<div><span>aaa</span><span> aaa</span>
+</div>
+<div><span>aaa</span> aa<span>aaa</span>
+</div>
+<div><span>aaa </span>aa<span>aaa</span>
+</div>
+<div><span>aaa</span>aa<span> aaa</span>
+</div>
+<div><span>aaa</span> aa <span>aaa</span>
+</div>
+<div><span>aaa</span>aa <span>aaa</span>
+</div>
+<div><span>aaa</span>aa</div>
+</f>
diff --git a/css/css-sizing/clone-nowrap-intrinsic-size.html b/css/css-sizing/clone-nowrap-intrinsic-size.html
new file mode 100644
index 0000000..c7bdd08
--- /dev/null
+++ b/css/css-sizing/clone-nowrap-intrinsic-size.html
@@ -0,0 +1,110 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Test: min/max-content size on box-decoration-break:clone inline box w. white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+ <link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content">
+ <link rel="help" href="https://drafts.csswg.org/css-break-3/#break-decoration">
+ <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1556709">
+ <link rel="match" href="clone-nowrap-intrinsic-size-ref.html">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: nowrap;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+.min > div {
+ width: -moz-min-content;
+ width: -webkit-min-content;
+ width: min-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+ -webkit-box-decoration-break: clone;
+ box-decoration-break: clone;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div>
+ <span>aaa</span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span> <span>aaa</span>
+</div>
+<div>
+ <span>aaa </span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span><span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa </span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa </div>
+</f>
+
+<f class="min">
+<div>
+ <span>aaa</span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span> <span>aaa</span>
+</div>
+<div>
+ <span>aaa </span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span><span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa </span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa </div>
+</f>
diff --git a/css/css-sizing/slice-nowrap-intrinsic-size-bidi-ref.html b/css/css-sizing/slice-nowrap-intrinsic-size-bidi-ref.html
new file mode 100644
index 0000000..dae4bc7
--- /dev/null
+++ b/css/css-sizing/slice-nowrap-intrinsic-size-bidi-ref.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Reference: min/max-content size on box-decoration-break:slice inline box with bidi text and white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: pre;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+}
+
+f { margin-right: 30px; float: left; }
+.l { margin-right:0; border-right-width:0; padding-right:0 }
+.r { margin-left:0; border-left-width:0; padding-left:0 }
+</style>
+<body>
+<f class="max">
+<div><span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa</div>
+</f>
+
+<f class="max">
+<div><span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div><span>‮a‭bc</span>aa</div>
+</f>
diff --git a/css/css-sizing/slice-nowrap-intrinsic-size-bidi.html b/css/css-sizing/slice-nowrap-intrinsic-size-bidi.html
new file mode 100644
index 0000000..1167912
--- /dev/null
+++ b/css/css-sizing/slice-nowrap-intrinsic-size-bidi.html
@@ -0,0 +1,108 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Test: min/max-content size on box-decoration-break:slice inline box with bidi text and white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+ <link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content">
+ <link rel="help" href="https://drafts.csswg.org/css-break-3/#break-decoration">
+ <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1556709">
+ <link rel="match" href="slice-nowrap-intrinsic-size-bidi-ref.html">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: nowrap;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+.min > div {
+ width: -moz-min-content;
+ width: -webkit-min-content;
+ width: min-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div>
+ <span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa </div>
+</f>
+
+<f class="min">
+<div>
+ <span>‮a‭bc</span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span><span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span><span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc </span>aa<span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa<span> d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span> aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa <span>d‮e‭f</span>
+</div>
+<div>
+ <span>‮a‭bc</span>aa </div>
+</f>
diff --git a/css/css-sizing/slice-nowrap-intrinsic-size-ref.html b/css/css-sizing/slice-nowrap-intrinsic-size-ref.html
new file mode 100644
index 0000000..34c04e8
--- /dev/null
+++ b/css/css-sizing/slice-nowrap-intrinsic-size-ref.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Reference: min/max-content size on box-decoration-break:slice inline box w. white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: pre;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div><span>aaa</span><span>aaa</span></div>
+<div><span>aaa</span>aa<span>aaa</span></div>
+<div><span>aaa</span> <span>aaa</span></div>
+<div><span>aaa </span><span>aaa</span></div>
+<div><span>aaa</span><span> aaa</span></div>
+<div><span>aaa</span> aa<span>aaa</span></div>
+<div><span>aaa </span>aa<span>aaa</span></div>
+<div><span>aaa</span>aa<span> aaa</span></div>
+<div><span>aaa</span> aa <span>aaa</span></div>
+<div><span>aaa</span>aa <span>aaa</span></div>
+<div><span>aaa</span>aa</div>
+</f>
+
+<f class="max">
+<div><span>aaa</span><span>aaa</span></div>
+<div><span>aaa</span>aa<span>aaa</span></div>
+<div><span>aaa</span> <span>aaa</span></div>
+<div><span>aaa </span><span>aaa</span></div>
+<div><span>aaa</span><span> aaa</span></div>
+<div><span>aaa</span> aa<span>aaa</span></div>
+<div><span>aaa </span>aa<span>aaa</span></div>
+<div><span>aaa</span>aa<span> aaa</span></div>
+<div><span>aaa</span> aa <span>aaa</span></div>
+<div><span>aaa</span>aa <span>aaa</span></div>
+<div><span>aaa</span>aa</div>
+</f>
diff --git a/css/css-sizing/slice-nowrap-intrinsic-size.html b/css/css-sizing/slice-nowrap-intrinsic-size.html
new file mode 100644
index 0000000..724a908
--- /dev/null
+++ b/css/css-sizing/slice-nowrap-intrinsic-size.html
@@ -0,0 +1,111 @@
+<!DOCTYPE html>
+<head>
+ <title>CSS Test: min/max-content size on box-decoration-break:slice inline box w. white-space:nowrap</title>
+ <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+ <link rel="help" href="https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content">
+ <link rel="help" href="https://drafts.csswg.org/css-break-3/#break-decoration">
+ <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1556709">
+ <link rel="match" href="slice-nowrap-intrinsic-size-ref.html">
+<style>
+html,body {
+ color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
+}
+
+div {
+ border: 5px solid blue;
+ white-space: nowrap;
+}
+.max > div {
+ width: -moz-max-content;
+ width: -webkit-max-content;
+ width: max-content;
+}
+.min > div {
+ width: -moz-min-content;
+ width: -webkit-min-content;
+ width: min-content;
+}
+
+span {
+ border: 2px solid gray;
+ padding: 0 10px 0 6px;
+ border-width: 0 8px 0 5px;
+ margin: 0 4px 0 3px;
+ background: yellow;
+ /* for clarity: */
+ -webkit-box-decoration-break: slice;
+ box-decoration-break: slice;
+}
+
+f { margin-right: 30px; float: left; }
+</style>
+<body>
+<f class="max">
+<div>
+ <span>aaa</span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span> <span>aaa</span>
+</div>
+<div>
+ <span>aaa </span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span><span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa </span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa </div>
+</f>
+
+<f class="min">
+<div>
+ <span>aaa</span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span> <span>aaa</span>
+</div>
+<div>
+ <span>aaa </span><span>aaa</span>
+</div>
+<div>
+ <span>aaa</span><span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa </span>aa<span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa<span> aaa</span>
+</div>
+<div>
+ <span>aaa</span> aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa <span>aaa</span>
+</div>
+<div>
+ <span>aaa</span>aa </div>
+</f>
