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CSS

Posted by Mark Christiansen
Mark Christiansen
7,622 Points

2 Issues with image and overlay, regarding size and height

I have 2 issues with my overlay.

  1. My image is very large (followed along on my own project), and the image is bigger than the height of my screen when it's in the lightbox. Should i resize the image itself before uploading or try with css?

  2. My overlay is set to height and width 100%, but when i scroll down, the overlay only cover the original position of the screen, meaning it scrolls away when I scroll down. What can be the issue here?

my css:

´´´

overlay {

background: rgba(0,0,0,0.8);
width:100%;
height:100%;
position:absolute;
top:0;
left:0;
display: none;
text-align: center;

}

overlay img {

margin-top: 10%;

}

overlay p {

color: black;

}

´´´

Any ideas?

1 Answer

Ryan Field
Ryan Field
Courses Plus Student 21,242 Points

1) In general, it's always a better practice to load smaller thumbnail images, and then load the larger images when clicked on (via AJAX, etc.) to display in your lightbox. It's not too bad if you only have a few images, but with many images, it can really slow down the load time of your page.

2) position: absolute; means that the element will be positioned, in your case, at the top left and will stay there if scrolled. To make it so that it's positioned there regardless of scrolling, you'll want to use position: fixed;. This will 'fix' it in place.

Mark Christiansen
Mark Christiansen
7,622 Points

Thanks for clearing it up regarding the thumbnails.

I saw a similar post with position:fixed and I should have tried that first.

Thank you Ryan