To add a text above Header Social Icons in Squarespace
You can use this code to Website Tools > Custom CSS.
div.header-actions.header-actions--right:before {
content: "Walk-In Only: Sun - Thurs: 5-10pm Fri & Sat: 5-10:30pm";
display: block;
color: #fff;
flex: 100%;
text-align: right;
font-family: Montserrat;
margin-bottom: 20px;
}
div.header-actions.header-actions--right {
flex-wrap: wrap;
}