The CSS Sprite is not functioning properly due to the fact that the container's dimensions are defined by the

As I work on my website RedRoll.com, one of the tasks on my to-do list is implementing CSS sprites. (Don't forget to scroll down to see the scrolling container under "Exclusive!")

.simply-scroll-btn-left {
    left: 0px;
    top: 0px;
    width: 34px;
    height: 100%;
    background: #000 url('https://www.redroll.com/wp-content/themes/steam/images/arrow-left.png') no-repeat center center;
    background-size: 7px 12px !important;
}

Upon inspection, you can observe that there is a black backdrop behind the current arrow with dimensions 34px x 100%.

However, here's where I run into an issue. The specified width and height in the CSS definition creates this black container around it, which means altering the width/height of the icon in my sprite would also change the size of the container.

The question then arises - How can I maintain the consistent size of the black background while specifying the size of the icon? And furthermore, how can I ensure the sprite remains centered in the middle of the black background just like its current position?

htmlcsscss-sprites

Answer №1

If I grasp your query accurately, given the constraints at hand, it seems viable to tackle this issue using pseudo elements.

One potential strategy involves making slight adjustments to the existing CSS styles as outlined below and incorporating a floating icon through a pseudo element.

This modification should grant you the necessary flexibility to size and choose distinct icons from your icon sprint/atlas:

[UPDATED] Apologies for the oversight in my initial response: content:'' must be included in the pseudo selector - please ensure its presence

/* Maintain most of the existing styling for box sizing while making minor tweaks */
.simply-scroll-btn-down {
    left: 0px;
    top: 0px;
    width: 100%;
    height: 25px;
    background: #000; // Omit image, etc
    position:relative; // Incorporate this to enable centering of pseudo element
}

/* Introduce a pseudo element for the icon */
.simply-scroll-btn-down:after {

    //[UPDATE] This is necessary
    content:'';

    position:absolute;
    display:block;

    // This aligns the pseudo element to the center
    left: 50%;
    top: 50%;

    // These adjustments cater to centering the pseudo element based on its dimensions
    margin-left:-20px;
    margin-top:-20px;
    width: 40px;
    height: 40px;

    // Customize these properties to correspond with the icon coordinates in your sprite/atlas 
    background-image: url('YOUR_SPRITE_URL');  // Adapt as required
    background-repeat:  no-repeat; // Modify as needed
    background-position: 10px 10px; // Adjust to match specifics
}

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