Some third party software, including Google Maps and Google Custom Search Engine, conflict with Bootstrap due to * { box-sizing: border-box; }, a rule which makes it so padding does not affect the final computed width of an element. As a heads up, we include this in all of Bootstrap's documentation and examples as a demonstration. For a list of some of the browser bugs that Bootstrap has to grapple with, see our Wall of browser bugs. , "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css", "sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u", "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css", "sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp", , "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js", "sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa", , , , , , "https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js", , // Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE), /* Box-sizing resets * global box model settings of Bootstrap. This can result in Bootstrap's extra-small grid being unexpectedly activated when printing. These default colors may need to be modified to increase their contrast and legibility. These hacks understandably cause CSS validators to complain that they are invalid. Use the snippet of code below to remove the offending CSS and render the as an unstyled element on the Android stock browser. Hovering over the page (body) will show some of the icons and hovering over the remaining icons will show those as well. Alternative browsers which use the latest version of WebKit, Blink, or Gecko, whether directly or via the platform's web view API, are not explicitly supported. Internet Explorer 10 doesn't differentiate device width from viewport width, and thus doesn't properly apply the media queries in Bootstrap's CSS. The zip file will come with css, fonts, and js directories. No docs or original source files are included. Check out this JS Bin demo. The .dropdown-backdrop element isn't used on iOS in the nav because of the complexity of z-indexing. Beware of the following caveats when using Respond.js in your development and production environments for Internet Explorer 8. When nesting headings (

-

), your primary document header should be an

. Use BootstrapCDN, provided for free by the folks at StackPath. Note that proxy browsers (such as Opera Mini, Opera Mobile's Turbo mode, UC Browser Mini, Amazon Silk) are not supported. Beyond that, any other included file provides support for packages, license information, and development. hit the refresh button or load something in an iframe) then the page gets rendered before the font loads. These validation warnings don't matter in practice since the non-hacky portion of our CSS does fully validate and the hacky portions don't interfere with the proper functioning of the non-hacky portion, hence why we deliberately ignore these particular warnings. Besides upgrading Safari/iOS, you have some options for workarounds: Support for overflow: hidden on the element is quite limited in iOS and Android.