That is wrong, css class selectors cannot wrap media queries. This is how you use a media query, and you do not need to use "and" or "screen" in your media query.@media (min-width: 750px) { .template-product { /* ... */ } }   

You cannot do it without editing code since the website is made of code, ie. HTML, CSS, and JavaScript.  For the use case you showed, this requires a change to the structure of the section, this can be done pretty easily with css grid or flex box in ...

When you run lighthouse make sure you do it in incognito mode. If you want traffic to your site in the beginning you need to pay for it with ads. You need to also log into google search console and make sure your site has been indexed. The google alg...

Ok so I would stay away from apps, they inject scripts all over the place. If you want a good site it needs to be maintainable and there's nothing worse than working on a site that installed a bunch of apps and there's scripts and code all over the p...

If you have no experience this will be a bit hard, because even with experience doing these things right can be tricky. You need to use webpack, its a bundler. I'm not going to go too deep into this, you need to get your code on your machine, you can...

In the image you provided the css is in the small panes on the right, you should be able to click <style>. This means that on that page there are inline styles which just means there is css in a set of <style></style> tags. If the css was coming from...

You said you want mobile swipe, and css has a built in scroll snap property you can read about on mdn. If you want to have a horizontal scroll then you don‘t need to worry about scroll snap. You can use overflow-y: auto but you need to look at where ...

The process is the same for any site, just go to where your button is and right click and inspect. This is the dev tools and you need to click the select icon in the top left corner or just use cmd + shift + c and click the button. You will see the c...

The most straight forward way to do this is to use css scroll snap. You can read about it on mdn. You could import a large library called swiperjs if you wanted but I think that is overkill for this. If you want indicator dots to show what slide you ...

You can edit the code yourself or hire someone. Adding something to the html in order to get the right layout might require a re think of how the html is structured and styled so it isn't as straight forward as just adding another block. It doesn't h...

You can upload an mp4 or even better a webm file to your files section on shopify.  You include the tag with a hosted file filter or you could copy the link that is provided when you view the file in your shopify admin.