Change orange elements to new color

Hi There,
While adding section you can choose font and bg color for section.Please locate us where you want to change color of site we can provide custom css if possible.
Thanks.

I would like to change the menu bar

Hi there.

Do you mean to change the line below the menu? if yes then use this code

#masthead { 

border-bottom: 3px solid red;
}

You can change the red color as you desire.

Thanks.

Hi there! I also want to change the orange line is just down of the main meny, and just up of the slider, i already put the code :

#masthead {

border-bottom: 3px solid black;
}

And it doesnt work!. any advice of what i do wrong?

actually i want to change the color orange for a black in all the webpage, because automatically it put in the buttons the orange , this is the website thevirtualsouvenir.com