header border

Try adding the following to a child theme or custom css plugin

#masthead .custom-header-image {
	border: 16px solid #454545;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

Thank you!

Hi again,
How can I have a shorter width sidebar?
Thank you very much

Can you start a new topic for that on the forum for the slider plugin you are using. I think you are using meta slider.

If that is the case, the best place to ask this question is at https://www.ads-software.com/support/plugin/ml-slider