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Long loading time or high CPU usage when a webpage uses certain CSS pseudo-selectors in Internet Explorer 11

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Symptoms

It takes a long time to load the webpage and you experience high CPU usage when a webpage uses the following CSS pseudo-selectors in Internet Explorer 11: 
:hover, :first-child, :last-child, :nth-child, :nth-last-child, :first-of-type, :last-of-type, :nth-of-type, :nth-last-of-type, :only-child, :only-of-type

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Resolution

Update information

To resolve this problem, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. Additionally, see the technical information about the most recent cumulative security update for Internet Explorer.

Note This update was first included in the December cumulative security update for Internet Explorer (MS14-080) .

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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References

See the terminology that Microsoft uses to describe software updates.

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Keywords: kbqfe, kbfix, kbexpertiseadvanced, kbsurveynew, kb

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Article Info
Article ID : 3020810
Revision : 1
Created on : 1/7/2017
Published on : 12/9/2014
Exists online : False
Views : 269