@@ -1215,15 +1215,14 @@ Orienting Text: the 'text-orientation' property</h3>
12151215 <p> This value is typical for layout of primarily vertical-script text.
12161216 <dt> <dfn>upright</dfn> </dt>
12171217 <dd><p> In vertical writing modes, characters from horizontal-only
1218- scripts are rendered upright, i.e. in their standard horizontal
1219- orientation.
1218+ scripts are rendered <a href="#typeset- upright">upright</a> ,
1219+ i.e. in their standard horizontal orientation.
12201220 Characters from vertical scripts are set with their intrinsic orientation
12211221 and shaped normally.
12221222 See <a href="#vertical-orientations">Vertical Orientations</a> for further details.
12231223 <p> For the purposes of bidi reordering, this value causes all
12241224 characters to be treated as strong LTR.
12251225 This value causes the used value of 'direction' to be ''ltr'' .
1226- <p class="issue"> <a href="https://lists.w3.org/Archives/Public/www-style/2015May/0004.html">Proposal to weaken to should</a>
12271226 <dt> <dfn>sideways-right</dfn> </dt>
12281227 <dd><p> In vertical writing modes, this causes text to be set as if
12291228 in a horizontal layout, but rotated 90° clockwise.
@@ -1291,8 +1290,6 @@ Vertical Typesetting and Font Features</h4>
12911290 (E.g. the OpenType ''vert'' feature must be enabled.)
12921291 Furthermore, characters from horizontal cursive scripts (such as Arabic)
12931292 are shaped in their isolated forms when typeset upright.
1294- <p class="issue"> <a href="https://lists.w3.org/Archives/Public/www-style/2015May/0004.html">Proposal to weaken to should</a> ,
1295- see also ''upright'' .
12961293
12971294 <p class="note"> Note that even when typeset "upright",
12981295 some glyphs should appear rotated.
@@ -1314,6 +1311,11 @@ Vertical Typesetting and Font Features</h4>
13141311 the UA <em> may wish to</em> [[!RFC6919]] (but is not expected to)
13151312 synthesize the missing glyphs by <a href="#typeset-sideways">typesetting them sideways</a> etc.
13161313
1314+ <p>
1315+ The behavior to typeset complex scripts such as Indic and South East Asian in vertical upright
1316+ it not defined at this level of the specification.
1317+ Also, the behavior to typeset only part of a <i> character</i> in upright is not defined.
1318+
13171319 <dt id='typeset-sideways'> sideways characters
13181320 <dd>
13191321 Are typeset rotated 90° sideways with horizontal metrics,
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