![internet explorer 8 compatibility mode internet explorer 8 compatibility mode](https://i.stack.imgur.com/LfaIu.png)
In reality, as noted in this post, compatibility view in Internet Explorer “is different under some circumstances to the actual old version, one does not precisely emulate the other, and I’ve seen some bugs which appear to belong to compatibility mode alone.” (From. “In Compatibility View, websites will be displayed as if you were viewing them in a previous version of Internet Explorer…” This last statement (#2) begs the question, “So what version does Internet Explorer use when Compatibility View is turned on?” If you check Internet Explorer’s Tools menu > Compatibility view settings, you’ll see a checkbox that says, “Display all intranet sites in Compatibility View.” If your website is in the Intranet (as many SharePoint sites are), the compatibility view that Internet Explorer is setting will override your rendering directives in the master page and elsewhere, unless you add an emulate tag. According to Microsoft, Intranet sites display in compatibility mode by default.
![internet explorer 8 compatibility mode internet explorer 8 compatibility mode](https://www.ibm.com/support/pages/system/files/support/nas/nastech.nsf/0/e90a03149831239d85257bc1005ebe63/Content/127.26A6.gif)