Add hover style inside SVG file or tag
When you set it as the content of a pseudo element, your svg is actually a CSS <image>. CSS <image> representing svg documents have the same restrictions as html <img> representing svg:
- No external resources will get fetched
- Scripts won't run in the inner document
- The inner document won't be interactive (i.e no pointer-events)
- ...
This means that any :hover
style in this svg document will be useless.
What you can do however is to set this :hover
on the parent .slick-next
element and change the content
there.
To avoid having to store two svg files on your servers with only the fill
that will change, you can use of a hack demonstrated by Lea Verou, which exploits the :target
pseudo-class. More info on this here.
You would have to restructure your svg so that you have invisible triggerer elements with [id]
attributes, so they can become :target
. Then all the logic is made using CSS selectors:
right_arrow.svg
<svg width="28" height="81" viewBox="0 0 28 81" xmlns="http://www.w3.org/2000/svg">
<style>
.slick_next_arrow {
fill:red;
}
/* when loaded from 'right_arrow.svg#hover' */
#hover:target ~ .slick_next_arrow {
fill:green;
}
</style>
<!-- here is our triggerer -->
<g id="hover"></g>
<!-- the visual content -->
<path class="slick_next_arrow" hover="fill:green" fill-rule="evenodd" clip-rule="evenodd" d="M3.73141 1.20959C2.95311 -0.00927037 1.3341 -0.366415 0.115239 0.411883L25.5894 40.3058L0 80.3802C1.21886 81.1585 2.83787 80.8014 3.61617 79.5825L27.4729 42.2216C27.7642 41.7653 27.8965 41.2531 27.884 40.7498C28.1017 40.0409 28.0185 39.2445 27.5881 38.5705L3.73141 1.20959Z"/>
</svg>
And your CSS:
.slick__arrow .slick-next::after {
content : url('right_arrow.svg');
}
.slick__arrow .slick-next:hover::after {
content : url('right_arrow.svg#hover');
}
Here is a more complex live-snippet since we have to workaround the fact we can't host third party files from StackSnippets.
const svg_content = `<svg width="28" height="81" viewBox="0 0 28 81" xmlns="http://www.w3.org/2000/svg">
<style>
.slick_next_arrow {
fill:red;
}
#hover:target ~ .slick_next_arrow {
fill:green;
}
/* some goodies */
circle {
display: none;
}
/* hide previous path */
[id^="show_circle"]:target ~ .slick_next_arrow {
display: none;
}
/* show new one */
[id^="show_circle"]:target ~ circle {
display: block;
fill: red;
}
#show_circle_hover:target ~ circle.change-color {
fill: green;
}
</style>
<!-- here are all our triggerers -->
<g id="hover"></g>
<g id="show_circle"></g>
<g id="show_circle_hover"></g>
<path class="slick_next_arrow" hover="fill:green" fill-rule="evenodd" clip-rule="evenodd" d="M3.73141 1.20959C2.95311 -0.00927037 1.3341 -0.366415 0.115239 0.411883L25.5894 40.3058L0 80.3802C1.21886 81.1585 2.83787 80.8014 3.61617 79.5825L27.4729 42.2216C27.7642 41.7653 27.8965 41.2531 27.884 40.7498C28.1017 40.0409 28.0185 39.2445 27.5881 38.5705L3.73141 1.20959Z"/>
<circle cx="14" cy="15" r="12"/>
<circle cx="14" cy="40" r="12" class="change-color"/>
<circle cx="14" cy="65" r="12"/>
</svg>`;
// StackSnippets force us to make a complex js-powered live demo...
// but in production all is done from CSS
const url = URL.createObjectURL( new Blob( [ svg_content ], { type: "image/svg+xml" } ) );
const el = document.querySelector( '.parent' );
el.style.setProperty( '--url', 'url(' + url + ')' );
el.style.setProperty( '--url-hovered', 'url(' + url + '#hover)' );
el.style.setProperty( '--url-circle', 'url(' + url + '#show_circle)' );
el.style.setProperty( '--url-circle-hovered', 'url(' + url + '#show_circle_hover)' );
.parent{
display: inline-block;
width: 28px;
height: 90px;
}
.parent::before {
/* right_arrow.svg */
content: var(--url);
}
.parent:hover::before {
/* right_arrow.svg#hover */
content: var(--url-hovered);
}
/* goodies */
:checked ~ .parent::before {
/* right_arrow.svg#show_circle */
content: var(--url-circle);
}
:checked ~ .parent:hover::before {
/* right_arrow.svg#show_circle_hover */
content: var(--url-circle-hovered);
}
<input type="checkbox" id="check"><label for="check">change shape</label><br>
<div class="parent"></div>
But you can access the simple version in this plnkr.