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I've figured out how to change background color in navigation menu by changing values from the navigation UI library (LESS file). Now I want to add top and bottom borders to this menu, how can I achieve that? Is it possible to add a new property like "border-top-style" (or any other) to the navigation styles? and how it is done?

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You can extend or overwrite the _navigation.less file. (you can find this in vendor > magento > theme-frontend-blank > web > css > source )

If you want to just change a few elements from this file, create a _navigation_extend.less file in your themes web > css > source file and add your styles in there. If you want to overwrite it entirely, don't add _extend to the end of the file name.

You will need to import this file into your _extend.less file using @import '_navigation_extend.less'; or @import '_navigation.less'; so that your changes are included in your theme.

Hope that helps!

  • I've already made some changes to navigation menu extending existing variables/properties from the navigation.less file but I dont know yet how to add new properties (border-top-style) to the navigation menu. – Luis Garcia Apr 16 '16 at 18:19
  • I'm pretty sure you've answered your own question here: magento.stackexchange.com/questions/106569/… Unless I'm missing something? – knarfeolhc Apr 22 '16 at 10:02
  • I dont know yet how to add new properties (border-top-style) to the navigation menu. I know the code should be in the _navigation_extend.less file but I have not identified where the border-top-style property is defined, so I can change/extend it. – Luis Garcia Apr 22 '16 at 14:54
  • What is your parent theme? I haven't seen a border-top-style variable yet, the only ones I've come across so far are: border-color__base, border-width__base, hr__border-color, hr__border-style, hr__border-width.These were in the _typography.less file in lib > variables. If it's a new property I'd create your own variable / add it into your _navigation_extend.less file. I've added my navigation border to my _navigation_extend.less file like so: .navigation { border-bottom: @border-width__base solid @color-black; } Maybe it's not the right way but it works for me. – knarfeolhc Apr 22 '16 at 15:50
  • Parent theme is Blank. In navigation.less (line 11) there is a @navigation__border: ' ' variable. In my _navigation_extend.less set it to @navigation__border: 3px solid blue; but it does not work. I'll try the way you did it. Thanks – Luis Garcia Apr 22 '16 at 16:46

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