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IE11 font size rendering rem/em calculation bug #13737

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thomaswelton opened this issue Jun 5, 2014 · 0 comments · Fixed by #13738
Closed

IE11 font size rendering rem/em calculation bug #13737

thomaswelton opened this issue Jun 5, 2014 · 0 comments · Fixed by #13738
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css
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v3.2.0

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@thomaswelton
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See: https://connect.microsoft.com/IE/feedback/details/816709/ie-11-calculating-font-sizes-wrong-when-setting-the-bodys-font-size-in-relative-units

Also in my testing of IE11...
Bootstrap sets the font-size on the html element to 62.5% which should mean that the font-size is 10px.
This is nice as in my own CSS I can easily calculate rem values for font sizes, widths, margins ect.
However in IE11 the computed font-size when using a value like 3.9rem ends up being a pixel value of 38.74px instead of what is should be 39px

If I set the base html font size to be 10px instead of 62.5% rem calculations work as expected.
thomaswelton added a commit to thomaswelton/bootstrap that referenced this issue Jun 5, 2014
@thomaswelton
Use px for font-size fixes twbs#13737
ea99e3c
@thomaswelton thomaswelton mentioned this issue Jun 5, 2014
Merged
@cvrebert cvrebert added the css label Jun 5, 2014
@cvrebert cvrebert changed the title IE11 Font size rendering rem/em calcaultation IE11 Font size rendering rem/em calculation Jun 5, 2014
@cvrebert cvrebert changed the title IE11 Font size rendering rem/em calculation IE11 font size rendering rem/em calculation bug Jun 5, 2014
@mdo mdo added this to the v3.2.0 milestone Jun 8, 2014
@mdo mdo closed this as completed in #13738 Jun 8, 2014
mdo added a commit that referenced this issue Jun 8, 2014
@mdo
Merge pull request #13738 from thomaswelton/issue-13737-fix-ie11-rem-…
4e67dc8 
…sizing

Use px for font-size fixes #13737
@mdo mdo mentioned this issue Jun 8, 2014
Closed
stempler pushed a commit to stempler/bootstrap that referenced this issue Nov 4, 2014
@thomaswelton
(less) Use px for font-size fixes twbs#13737
c706a40
stempler pushed a commit to stempler/bootstrap that referenced this issue Nov 4, 2014
@mdo
(less) Merge pull request twbs#13738 from thomaswelton/issue-13737-fi…
81ecb93 
…x-ie11-rem-sizing

Use px for font-size fixes twbs#13737
@stein-t stein-t mentioned this issue Sep 8, 2018
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Use px for font-size fixes #13737 thomaswelton/bootstrap
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@mdo @cvrebert @thomaswelton