selecting the correct area in an image sprite and positioning it in the desired location

Question

selecting the correct area in an image sprite and positioning it in the desired location

Recently, I've been experimenting with an image sprite to use as a background.

I'm trying to choose two sections of the image and position them at different spots in the body background - one in the bottom left corner and one in the top right corner.

For example, let's say I have an image that is a rectangle, 1700px wide and 1100px tall, which serves as my image sprite.

First, I need to select a rectangular area that is 600px wide and 400px tall from the top right of the image sprite. This section should be placed in the top right corner of the body element as a background.

Next, I need to choose the bottom left portion of the image sprite, also 600px wide and 400px tall. This part will be positioned in the bottom right corner of the body as another background image.

css positioning background-image css-sprites

Answer 1

Answer №1

As far as I know, you can only assign one background image per element. If you want to have two background images, you will need to utilize pseudo elements (:after/:before).

#area {
    position: relative; /* Relative positioning sets the element as the reference point for absolute positioning of pseudo-elements */
    z-index: 1; /* A positive z-index ensures correct z-axis positioning of the pseudo-elements */
    /* Set any desired background and your two background images will be placed in :before and :after */
}
#area:before, #area:after {
    position: absolute; /* Elements should be positioned absolutely */
    z-index: -1; /* Places the background images behind #area */
}
#area:before {
    /* Define width, height, and the first background image here */
}
#area:after {
    /* Define width, height, and the second background image here */
}

You may need to add display:block and content:" " to your pseudo elements to prevent them from being omitted.

EDIT: Assuming you are familiar with CSS background sprites, most of the work has been completed for you ;)

Answer 2

As far as I know, you can only assign one background image per element. If you want to have two background images, you will need to utilize pseudo elements (:after/:before).

#area {
    position: relative; /* Relative positioning sets the element as the reference point for absolute positioning of pseudo-elements */
    z-index: 1; /* A positive z-index ensures correct z-axis positioning of the pseudo-elements */
    /* Set any desired background and your two background images will be placed in :before and :after */
}
#area:before, #area:after {
    position: absolute; /* Elements should be positioned absolutely */
    z-index: -1; /* Places the background images behind #area */
}
#area:before {
    /* Define width, height, and the first background image here */
}
#area:after {
    /* Define width, height, and the second background image here */
}

You may need to add display:block and content:" " to your pseudo elements to prevent them from being omitted.

EDIT: Assuming you are familiar with CSS background sprites, most of the work has been completed for you ;)

selecting the correct area in an image sprite and positioning it in the desired location

Answer №1

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