Hello Claire

I’m really Sorry for the above CSS, Please add this one

.elementor-page-3410 a.more-link {
    display: none;
}

Regards,
Psink

hello Claire

Please add this CSS code in the theme

#hero-section a.more-link {
    display: none;
}

To add above CSS in the theme, Please go to Admin Panel >> Appearance >> Customize >> Additional CSS, there paste the above CSS then published and refresh

Regards,
Psink

You are welcome

Hello Sybille

Oh I see, so you are taking about slider and other sections of the homepage

Please follow the theme instruction for managing homepage sections
https://themepalace.com/instructions/themes/kids-education-pro/

Regards,
Psink

Hello Tena

Please This CSS in Additional CSS to remove the date and author name form the blog section on the homepage

#latest-posts article .entry-meta{
     display: none;
}

And this CSS in Additional CSS to remove the previous and the next post from a single post

.single .post-navigation{
     display: none;
}

Have a great day

Regards,
Psink

Hello Keistjan

For Query no. 1 & 3 – Add this CSS in the Additional CSS

@media screen and (min-width: 1024px){
    .main-navigation form.search-form {
        min-width: 400px;
       
    }
    .main-navigation form.search-form input{
        border-radius: 10px;
   }
   #header-banner-image .overlay{
        opacity: 0;
   }

}

Adjust border radius and width as per your need – just change value in above CSS

For query no. 2 – Add this CSS in the Additional Css

#featured-slider .entry-meta .byline, 
#featured-slider .entry-meta .posted-on,
.archive-blog-wrapper .entry-meta .byline,
.archive-blog-wrapper .entry-meta .posted-on{
   display: none;
}

For query no. 4, 5 – it is not possible to do that in the theme

Have a great Day

Regards
Psink

Hello raheel

Please add this CSS in the theme

.search-results #sidebar-primary,
.search-results #sidebar-secondary{
	display: none;
}

.search-results #primary,
.search-results .three-columns-enabled #primary {
	width: 100%;
}

To add this CSS please go to Admin Panel >> Appearance >> Customize >> Additional CSS, there paste the above CSS code then publish and refresh

Hope this helps

have a great day

Regards,
Psink