Beyondspace

You can get reference here: https://support.squarespace.com/hc/en-us/articles/206545347-Pacific-template-family

Try adding to Home > Design > Custom Css
.ProductItem-nav-breadcrumb-link[href="/store-1"] { pointer-events: none; } Support me by pressing 👍  or marking as solution if this useful for you

You can try adding to Home > Design > Custom Css
@media only screen and (max-width: 767px) { .container.header-menu-nav-item [href="/naxos-gallerie"] { display: none; } .container.header-menu-nav-item [href="/histoire"] { display: none; } .container.header-menu-nav-item [href="/activits"] { display: none; } } Let me know it works on your site
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For 1,2,4 Try adding to Home > Design > Custom Css
.blog-basic-grid .image-wrapper { border-top-left-radius: 10px; border-top-right-radius: 10px; } .blog-basic-grid--text { padding-right: 20px; padding-left: 20px; box-sizing: border-box; } .blog-basic-grid .blog-more-link { color: red; } Support me by pressing 👍 if this useful for you

Try the following one to change height of each item
.tweak-portfolio-grid-overlay-image-aspect-ratio-ultra-widescreen .portfolio-grid-overlay .grid-image, .tweak-portfolio-grid-overlay-image-aspect-ratio-ultra-widescreen .portfolio-grid-overlay .grid-item { padding-bottom: 100%; } Change the value % until it meets your need

My testing

Have you used any custom code on Pages > choose the Contact Page > Setting > Advanced?

It seems that this code is located on it

 

You can try adding to Home > Design > Custom Css
.products.collection-content-wrapper .grid-main-meta .grid-prices { font-family: arial; } .products.collection-content-wrapper .nested-category-breadcrumb-link { font-family: arial; } Support me by pressing 👍  or marking as solution if this useful for you

It seems that there is a css code that is set below my code so it overwrites mine.

Can you remove it? Or you can set like this
body.homepage .gallery-fullscreen-slideshow-control-btn { height: 100%; width: 100% !important; /*set the highest priority*/ } .gallery-fullscreen-slideshow-control { width: 50%; } [data-next] .gallery-fullscreen-slideshow-control-btn-icon { display: flex; justify-content: flex-end; } .gallery-fullscreen-slideshow-control-btn::before { content: unset; } .gallery-fullscreen-slideshow-control-btn-icon svg { padding: 20px; background: var(--tweak-gallery-icon-background-color); } Hope it works fine

Nice, I check again and here is the code you can try on Home > Design > Custom Css
#block-yui_3_17_2_1_1664054628750_4247 .archive-block-wrapper { max-width: unset; } Support me by pressing 👍  or marking as solution if this useful for you

You can try adding to Home > Design > Custom Css
#header:not(.shrink) .header-nav-folder-content { background: transparent; } Let me know how it works on your site
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Try adding to Home > Design > Custom Css
section[data-section-id="6373bc904b5f15018776d1b3"] .portfolio-grid-overlay .grid-item:nth-child(1) .portfolio-overlay { background-color: red; } section[data-section-id="6373bc904b5f15018776d1b3"] .portfolio-grid-overlay .grid-item:nth-child(2) .portfolio-overlay { background-color: blue; } Here is the code for setting overlay color for the first and the second item
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You can wrap you css code on media query so it will not affect the mobile display.
@media only screen and (min-width: 768px) { /* style for tablet and desktop, not mobile */ }  

Try adding to Home > Design > Custom Css
.user-items-list .list-section-title{ font-size: 30px; }  

You can try adding to Home > Design > Custom Css
:not(.header--menu-open) .header-actions .header-icon:not(.header-icon-border-shape-none).header-icon-border-style-outline:hover { box-shadow: 0px 0px 0px 1px inset !important; color: #f2ba40 !important; background: transparent ; } Let me know how it works on your site
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Try adding to Home > Design > Custom Css
.header-menu-nav-folder-content .header-menu-nav-item-content { font-family: arial; } Choose the custom font you want to apply
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Try adding to Home > Design > Custom Css
@media only screen and (min-width: 768px) { #block-yui_3_17_2_1_1668497775818_26073, #block-yui_3_17_2_1_1668497775818_29464 { display: none; } } Support me by pressing 👍  or marking as solution if this useful for you

Try adding to Home > Design > Custom Css
section[data-section-id="62a90e0bef20434f1b8d9b27"] .sqs-layout > .row { margin-right: 0; margin-left: 0; } section[data-section-id="62a91ede5b80b358fd25d72f"] .sqs-layout > .row { margin-right: 0; margin-left: 0; } Press 👍 or mark this answer as solution to help another one too

Which version are you using? you can use the following code on Home >  Design > Custom Css to reduce the padding of the main content:
.site-outer-padding-small .site-page { padding-right: 0vw; padding-left: 0vw; }  

You should use the following code to set font for entire site
* { font-family: 'TMCMabry-Light' !important; }  

You can try the following custom css
@media only screen and (max-width: 767px) { .site-title { font-size: 32px; } } Support me by pressing 👍 if this useful for you

Try adding to Home > Design > Custom Css
@media only screen and (max-width: 767px) { section[data-section-id="620b7e168d47fb2e359458ba"] .content .sqs-layout .col.sqs-col-3.span-3 { margin-top: 0 !important; } } Let me know how it works on your site

Try adding to Home > Design > Custom Css
#collection-635c6c71a5ba142eb1b00a9d .socialaccountlinks-v2-block .social-icons-style-regular .sqs-use--icon { fill: orange; } Let me know how it works on your site
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Try adding to Home > Design > Custom Css
#block-b8f08f91349cf810725a .TextShape-node { margin-top: 10px; }  

Here is the tutorial to add customized font on your site

import custom font.mp4