every page of your site has its own page-id in form of a class to body ! (look to the source code of the concerning website page)
so if you don’t want to install a plugin the only way is to set up for each page-id a unique rule in quick css

so if you have the code above set up first the non-changing rules:

.main_color {
    background-attachment: fixed;
    background-clip: border-box;
    background-color: #ffffff;
    background-origin: padding-box;
    background-repeat: no-repeat;
    background-size: cover;
}

and than for every page (even if home page got it) for example.

.page-id-31 .main_color {
    background-image: url("//studiopsicologoverona.it/wp-content/uploads/2016/03/PSICOLOGO-VERONA-GIORGIO-DAL-MASO.jpg");
}
.page-id-65 .main_color {
    background-image: url("//studiopsicologoverona.it/wp-content/uploads/2016/03/PSICOLOGO-ROMA-GIORGIO-DAL-MASO.jpg");
}

by the way : maybe this is a nice little plugin – http://inoplugs.com/portfolio-item/wp-backgrounds-lite-version/

on every page or post you can choose a different background image – and i think it is set to cover and fixed allready

it is now in maintenance mode !

why are you using the stretched layout?
If you want something behind your Content to see – you have to have something semitransparent on your site!

this here is a handmade yaml4 site which is made by a trainee of mine. you want that this effect is on your page ?

http://webers-testseite.de/example/index.html

click on the last image – to zoom in – on the right side there you can see the html code with 6 p tags

if you make that section smaller like:

.page-id-18725 main .av_textblock_section:nth-child(4) {
    margin: 0 auto;
    width: 500px;
}

you will have :

enough text in one p tage the justify rule can take effect !

also ohne die Seite zu sehen ist das schwer zu sagen.
Da musst du dann eben warten bis ein Moderator hier vorbeischaut – falls du im private Bereich sowas gepostet haben solltest.

without a link to the concerning website it is hard to say. so – please wait on a moderator (if you have still posted in private Area a link)

btw: you got the stretched layout? where do you place the background image ( in wrap_all etc pp ???)

• This reply was modified 8 years, 8 months ago by Guenni007.

you only read the code and thats it?

do you see what i wrote first !

6 p tags do not allow a justify rule

have you logged in to your mysql database?
Try to optimize/repair your database tables

so you mean that mega-div sub-menu set on menu ?
to set it to 100vw (100%screenwidth) is not the thing but the positioning is the thing here. on avis.js there is a calculation of the right positioning of that unit. – so please wait on a moderator – perhaps there is a possibility.

what Register do you mean – that of a new user in wordpress?
Or do you have a plugin installed for that new users

isn’t there a checkbox “yes i know – and go on with weak password”

Well we are all no hyper nerds in knowing everything about a theme.
We simply use tools that show us the info about a website.
One of the first tools was that brilliant firebug plugin (first for firefox – later there are versions for other browsers too) – nowadays a lot of modern browsers have such tools implemented.
Usually you can reach those tools via the context menu of your mouse.
Show on the wanted piece of your website – call the context menu (if you got a more than one button mouse – commonly the right mouse button) and navigate to “inspect” or “inspect via firebug” in my case. Sorry i dont know if it is called inspect because i got a german browser so for me there is “Element untersuchen”
here is a good articel about why it is important to use such tools. Here

you see in that screenshot – i have called the info about the main nav list point “headers” (colored arrows) and on the left side you can see the html structure. On the right side there is the css code. Very nice – if you click on the right side (where css part is written by me) an click there right mouse button you can virtually ad new css rules. etc.
Click on the image You see that f.e. the id of this third list point of main nav is #menu-item-1561 – you can inspect on the right side where this element gets his outlooking from and from whom it has inherited his css rules. so if you want to change the color of the font f.e. you have to scroll down this right side and find the rule of color. etc. pp

• This reply was modified 8 years, 8 months ago by Guenni007.

on a test install with two fullscreen sliders i see that the first one gets the class: avia-builder-el-0 and the second one avia-builder-el-1

so try to do it this way:

@media only screen and (min-width: 768px) {
#fullscreen_slider_0.avia-builder-el-0 {
    display: none;
}
}

@media only screen and (max-width: 767px) {
#fullscreen_slider_0.avia-builder-el-1 {
    display: none;
}

#fullscreen_slider_0.avia-builder-el-0 {
    display: block;
}
}

:lol – and if you do that to create you own portfolio-widget area then you can register that as default if you have some coding on register-admin-options.php ;-)

and some coding in helper-template-logic.php …