Drop Down Menu customisation

Site URL: https://www.theenglishvine.co.uk/

I want to customise my dropdown menu... as you can see on the screenshot the dropdown menu gets cut off the browser screen... how do i edit this... maybe size, padding... alignment to the top nav 'shop' button?

Add to Home > Design > Custom CSS

[href="/shop"]+.Header-nav-folder a {
    font-size: 10px;
}
[href="/shop"]+.Header-nav-folder {
    padding: 5px;
}

Thats great thank you so much... Is there anyway to align the dropdown box centrally to the word 'Shop'?

10 hours ago, brawn14 said:

Thats great thank you so much... Is there anyway to align the dropdown box centrally to the word 'Shop'?

[href="/shop"]+.Header-nav-folder {
    padding: 5px;
    left: -50% !important;
}