sehnsuchtstudios

Some CSS Class/ID for Squarespace 7.1
Announcement Bar
Announcement bar: .sqs-announcement-bar-dropzone Announcement bar text: .sqs-announcement-bar-dropzone p Announcement bar link: .sqs-announcement-bar-dropzone a Announcement Bar Close Icon: .sqs-announcement-bar-close OR .sqs-announcement-bar-close:after Header
Header: header#header Sticky Header: header.shrink Header (not include sticky header): header#header:not(.shrink) Header (when burger menu is open): body.header--menu-open header#header Header (when burger menu is close): body:not(.header--menu-open) header#header Site Title: a#site-title Site Title (when overlay menu open): .header--menu-open a#site-title Site Title (when overlay menu close) body:not(.header--menu-open) a#site-title Navigation: .header-nav Navigation Items: .header-nav-item a Navigation First Item: .header-nav-item:nth-child(1) a Navigation Second Item: .header-nav-item:nth-child(2) a Navigation Dropdown: .header-nav-folder-content Navigation Dropdown Items: .header-nav-folder-item a Navigation Folder Title: a.header-nav-folder-title Mobile Navigation Items: .header-menu-nav-item a Mobile Navigation First Item: .header-menu-nav-folder[data-folder="root"]>div>div:first-child Mobile Navigation First Item (text): .header-menu-nav-folder[data-folder="root"]>div>div:first-child a Mobile Navigation Second Item: .header-menu-nav-folder[data-folder="root"]>div>div:nth-child(2) Mobile Navigation Second Item (text): .header-menu-nav-folder[data-folder="root"]>div>div:nth-child(2) a Mobile Menu Icon: .header-burger Mobile Burger 3 lines: .burger-inner>div Mobile Menu X icon: body.header--menu-open .burger-inner>div Header Social Icons: .header-actions .icon Cart Icon: header#header span.Cart-inner Cart quantity: header#header .icon-cart-quantity Header Button: header#header a.btn Header Desktop Button: .header-display-desktop a.btn Header Mobile Button: .header-menu-cta a a Footer
Footer: footer#footer-sections Footer Social Icons:  footer#footer-sections  .sqs-svg-icon–outer Footer Links: footer#footer-sections a Product List
Product List: .collection-type-products.view-list Product Name: .grid-title Product Price: .grid-prices Product Image: figure.grid-image Product Currency: body.native-currency-code-usd .sqs-money-native:before Sold Out Text: .product-mark.sold-out Product Detail
Product Detail: .collection-type-products.view-item Product Breadcrumb: .ProductItem-nav-breadcrumb Product Pagination (Previous/Next): .ProductItem-nav-pagination Gallery: figure.ProductItem-gallery Thumbnails: .ProductItem-gallery-thumbnails Big Image: .ProductItem-gallery-slides Product Name: h1.ProductItem-details-title Price: .ProductItem-product-price Currency: body.native-currency-code-usd .sqs-money-native:before Excerpt: .ProductItem-details-excerpt Add to Cart Button: .sqs-add-to-cart-button-wrapper Add to Cart Text: .sqs-add-to-cart-button-inner Variant Dropdown: .variant-option Variant Title: .variant-option-title Variant Options: .variant-select-wrapper option Quantity Text: .quantity-label Quantity Input: .product-quantity-input Cart Page
Cart Page: body#cart Cart Page Title: .cart-title Product Name: a.cart-row-title Product Thumbnail: div.cart-row-img Qty minus: .cart-row-qty-dec Qty plus: button.cart-row-qty-inc Qty number: input.cart-row-qty-input Price: .cart-row-price X icon: .cart-row-remove or .cart-row-remove svg Sub total text: .cart-subtotal-label span Sub total price: .cart-subtotal-price Checkout Button: button.cart-checkout-button   Item: .CartTable-itemLabel-3zzV1 QTY. .CartTable-itemLabel-3zzV1 span Price Name: .CartTable-itemPrice-XgjsO span X icon: .item-remove div Blog List
Blog List: [class*="type-blog"].view-list Thumbnails: article.blog-item img Date: time.blog-date Category: span.blog-categories-list Title: h1.blog-title Excerpt: .blog-excerpt Read more: a.blog-more-link Blog Posts
Blog Posts Page: [class*="type-blog"].view-item Blog Items: .blog-item-entry Categories: .blog-meta-item–categories Date: time.dt-published.blog-meta-item.blog-meta-item–date Author: .blog-meta-item.blog-meta-item–author.p-author.author Title: .blog-item-title Content: .blog-item-content-wrapper Pagination: .item-pagination Pagination Arrows: .item-pagination-link .item-pagination-icon Pagination Title: h2.item-pagination-title Author Box: .blog-item-author-profile-wrapper Author Image: a.author-avatar.content-fill Author Name: .author-name Author Site: a.author-website Post Comment: .squarespace-comments Post Comment Button: .comment.btn Comment Input: .squarespace-comments .new-comment-area Preview: span.btn-text.preview-comment.top-level-preview-btn Subscribe via email text: span.subscribe.subscribe-control Blog Grid
updating
Blog Masonry
updating
Event List Page
Event List Page: .collection-type-events.view-list Event Thumbnail: a.eventlist-column-thumbnail.content-fill Event Time: .eventlist-datetag Event Date: .eventlist-datetag-startdate.eventlist-datetag-startdate–day Event Month: .eventlist-datetag-startdate.eventlist-datetag-startdate–month Event Title: h1.eventlist-title Event Hour: li.eventlist-meta-item.eventlist-meta-time.event-meta-item Event Description: .eventlist-description Event Detail Page
Event Detail Page: .collection-type-events.view-item Event Title: h1.eventitem-title Event Date: time.event-date Event Hour: li.eventitem-meta-item.eventitem-meta-time.event-meta-item Event Description: .eventitem-column-content Event Pagination: section.item-pagination.item-pagination–prev-next Previous/Next: .item-pagination-link .item-pagination-prev-next Event Pagination Title: h2.item-pagination-title Portfolio
title: h3.portfolio-title item: .portfolio-grid-basic portfolio image: .portfolio-grid-basic .grid-image pagination: [data-collection-type=“portfolio-grid-basic”].item-pagination pagination text: h2.item-pagination-title pre text: .item-pagination-link–prev .item-pagination-prev-next next text: .item-pagination-link–next .item-pagination-prev-next List Simple
List Simple: .user-items-list-simple Image: .user-items-list-simple img First Item: .user-items-list-simple li:nth-child(1) Second Item: .user-items-list-simple li:nth-child(2) List Content: .user-items-list-simple .list-item-content Title: .user-items-list-simple h2.list-item-content__title Description:  .user-items-list-simple list-item-content__description OR .user-items-list-simple p List Slideshow
List Slideshow: .user-items-list-banner-slideshow Image: .user-items-list-banner-slideshow img First Item: .user-items-list-banner-slideshow li:nth-child(1) Second Item: .user-items-list-banner-slideshow li:nth-child(2) List Content: .user-items-list-banner-slideshow .slide-content Title: .user-items-list-banner-slideshow h2.list-item-content__title Description:  .user-items-list-banner-slideshow list-item-content__description OR .user-items-list-banner-slideshow p Arrow Circles: .user-items-list-banner-slideshow .user-items-list-banner-slideshow__arrow-button Arrow Icons: .user-items-list-banner-slideshow .user-items-list-banner-slideshow__arrow-button svg Button: .user-items-list-banner-slideshow .list-item-content__button List Carousel
List Carousel: .user-items-list-carousel__slides Image: .user-items-list-carousel__slides img First Item: .user-items-list-carousel__slides li:nth-child(1) Second Item: .user-items-list-carousel__slides li:nth-child(2) List Content: .user-items-list-carousel__slides .list-item-content Title: .user-items-list-carousel__slides h2.list-item-content__title Description:  .user-items-list-carousel__slides list-item-content__description OR .user-items-list-carousel__slides p Arrow Circles: .user-items-list-carousel__arrow-button Arrow Icons: .user-items-list-carousel__arrow-button svg Button: .user-items-list-carousel__slides .list-item-content__button Fluid Engine
Fluid Block (text block, image...): Each block is wrapped by the same class name .fe-block and a unique id. And All .fe-blocks will be wrapped by a parent tag with a class name of .fluid-engine
 
Checked & Wrote by tuanphan

Dear Squarespace team,
Full-width sliding images with the ability to place the same or different text and buttons on each image is absolutely a feature we need. I get this request on literally almost every site I build. 
I believe it is a feature that would get used  millions of times over. I love what you have built and the more I get used to 7.1, I can see it's advantages. Adding this feature would make 7.1 an absolute no-brainer. Please acknowledge our collective desire to have this implemented as soon as possible.
Thank you for all you do!

@tuanphan Can you expand upon this? What custom CSS would turn the link text into an icon? I understand how to do this in 7.0 using code injection, but that feature has been removed in 7.1 (which is exceptionally aggravating).
I don't personally need to use a search icon in my header, but I do need to use a socials icon (Instagram), as the default way of doing this in 7.1 (Header > Element > Social Links) puts the icon way outside of where it needs to be, and isn't adjustable.

Even more disappointingly, in 7.0, you could add Font Awesome Icons to navigations using Link items. See this search icon which uses this code:
<i class="fas fa-search"></i> I've used that method several times to link from the nav or footer to the /search page on a site.
In 7.1, it appears that code is now disabled in navigation items altogether, meaning you can't do a lot of things—not even make a nav item bold or italics.
That may seem like a small thing but being able to insert code into a nav item (and many other places in SQS) was super useful. A real digression in features.

From everything I've read it looks like the move to 7.1 (and removal of specific templates in favour of design styles) means header search is now gone. Same story with the Sidebar. Both features no longer seem to be supported which is super disappointing. 
The irony is that the Squarespace's own sites use both of these features (header search and sidebar) heavily.
They are great features, please bring them back.