I figured this out. I coded all of one group’s dropdown menu-items in to one width. Here’s what I did:
Our Trips dropdown:
.nav-head ul ul li#menu-item-32, .nav-head ul ul li#menu-item-842, .nav-head ul ul li#menu-item-841,
.nav-head ul ul li#menu-item-63, .nav-head ul ul li#menu-item-1065, .nav-head ul ul li#menu-item-1165 {width: 195px !important;}
Your Trip dropdown:
.nav-head ul ul li#menu-item-68, .nav-head ul ul li#menu-item-840, .nav-head ul ul li#menu-item-67,
.nav-head ul ul li#menu-item-66, .nav-head ul ul li#menu-item-59 {width: 243px !important;}
Canyoneers Story dropdown:
.nav-head ul ul li#menu-item-61, .nav-head ul ul li#menu-item-60 {width: 171px !important;}
And I also set the below to width auto (this also has a white background ’cause I have a small space between the submenu items and I don’t want the page text to show between them):
.nav-head ul ul {display:none; position:absolute; width:auto; top:100%; background:#fff; padding-right:11px;}