Exploring impress.js for the first time and looking to customize my presentation. In the original demo, the slides become dim/transparent when inactive, as shown HERE. On another impress.js presentation HERE, the slides remain opaque except on the first slide. How can I keep a specific slide or image opaque throughout the entire presentation?
To adjust the opacity in your CSS code, you can include the following:
.future : { opacity: 1.0 !important;}
.past : { opacity: 1.0 !important;}
If you prefer to modify impress-demo.css directly, consider changing the opacity for different steps with the following code snippet:
.impress-enabled .step {
margin: 0;
opacity: 0.3; <--- MODIFY THIS
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
-ms-transition: opacity 1s;
-o-transition: opacity 1s;
transition: opacity 1s;
}
Alternatively, you can use jQuery to target specific elements and adjust their opacity dynamically. Here's an example:
$("body").find(".future")[0].css("opacity","1.0"); <-- This will only change the opacity of the first future step found
Make sure to familiarize yourself with CSS rules and specificity by reading more at: https://developer.mozilla.org/en-US/docs/Web/CSS/Specificity
UPDATE
If you want to utilize additional CSS selectors like :first-child or :after, check out these resources for further guidance: http://www.w3schools.com/cssref/sel_after.asp
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