Errors and unknown classes from bootstrap CDN

I'm getting a lot of errors showing in the developer console, but they're all listed as coming from http://ift.tt/1r529cJ

Here are some of the errors listed:

Unknown pseudo-class or pseudo-element '-webkit-inner-spin-button'.  Ruleset ignored due to bad selector.
Unknown pseudo-class or pseudo-element '-webkit-search-cancel-button'.  Ruleset ignored due to bad selector.
Expected end of value but found '\9 '.  Error in parsing value for 'width'.  Declaration dropped. 
Expected end of value but found '\9 '.  Error in parsing value for 'margin-top'.  Declaration dropped. 
Unknown pseudo-class or pseudo-element '-ms-input-placeholder'.  Ruleset ignored due to bad selector. 
Unknown pseudo-class or pseudo-element '-webkit-input-placeholder'.  Ruleset ignored due to bad selector.
Expected end of value but found '�'.  Error in parsing value for 'line-height'.  Declaration dropped.
Unknown property 'user-select'.  Declaration dropped.

It's a personal site targeted to potential employers, so I don't want them to think I have errors in my website. Does anyone know why I'm getting these and how I can get rid of them?