change color border header-contentbox combo

1. Around the header+content area is a #c0c0c0 border. I want this color to disappear and to have a blue border (#21759B) on the top, left and right of 1 px

2. I want to have on the left and right of the footer container also a border in #21759B of 1 px

3. I want to have the footer navi container also to have a border in #21759B on the left, right and bottom of 1 px

 

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.container {
border: 1px solid #21759B;
}
.footer-container {
border-left: 1px solid #21759B;
border-right: 1px solid #21759B;
}
.footer-navi {
border-left: 1px solid #21759B;
border-right: 1px solid #21759B;
border-bottom: 1px solid #21759B;
}