Identifying visual discrepancies using details and summary elements alongside a realigned webkit marker for enhanced functionality (demo available on jsfiddle) in CSS3 and

I've encountered a minor yet significant issue. I managed to successfully incorporate a feature that enables me to hide and expand content using custom symbols, specifically a "+" and "-". This implementation was inspired by HTML5 Doctor.

Here, you can find the code version on jsfiddle where the CSS excerpt is provided:

   summary:-webkit-details-marker {
 color: 000;
display: none;
 font-size: 125%;
 margin-right: 2px;
 animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */  
    height: 10px;
    font-size: 20px;
    overflow: hidden;
}

summary:after {
  background: transparent; 
  border-radius: 5px; 
  content: "+"; 
  color: #000; 
  float: left; 
  font-size: 1.5em; 
  font-weight: bold; 
  margin: -5px 10px 0 0; 
  padding: 0; 
  text-align: center; 
  width: 20px;
}
details[open] summary:after {
  content: "-";
}

summary:focus {
    outline-style: none;
animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */

}

article > details > summary {
color: transparent; 
font-size: 18px;
    margin-top: 16px;
 animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */

}

details > paragraph {
    margin-left: 24px;

animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */

}

details details {
    margin-left: 36px;
animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */

}

details details summary {
    font-size: 16px;
animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */

}

@keyframes fadein {
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
@-moz-keyframes fadein { /* Firefox */
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
@-webkit-keyframes fadein { /* Safari and Chrome */
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
@-o-keyframes fadein { /* Opera */
    from {
        opacity:0;
    }
        to {
            opacity: 1;
        }
}

My aim is to have another version where the expand/hide symbol aligns to the right. Despite trying this, it fails to perform as intended. The text appears early, and the symbol seems inactive. I suspect there's an error on my part, although the realignment worked.

Below is the CSS snippet from the second jsfiddle attempt:

rsummary:-webkit-rdetails-marker {
 color: 000;
display: none;
 font-size: 125%;
 margin-left: 2px;
 animation: fadein 3s;
    -moz-animation: fadein 3s; /* Firefox */
    -webkit-animation: fadein 3s; /* Safari and Chrome */
    -o-animation: fadein 3s; /* Opera */  
    height: 10px;
    font-size: 20px;
    overflow: hidden;
}



rsummary:after {
background: transparent; 
border-radius: 5px; 
content: "+"; 
color: #000; 
float: right; 
font-size: 1.5em; 
font-weight: bold; 
margin: -5px 10px 0 0; 
padding: 0; 
text-align: center; 
width: 20px;
}


rdetails[open] rsummary:after {
content: "-";
float: right;
}



rsummary:focus {
outline-style: none;
animation: fadein 3s;
-moz-animation: fadein 3s; /* Firefox */
-webkit-animation: fadein 3s; /* Safari and Chrome */
-o-animation: fadein 3s; /* Opera */
}


rarticle > rdetails > rsummary {
color: transparent;
float: right;   
font-size: 18px;
margin-top: 16px;
animation: fadein 3s;
-moz-animation: fadein 3s; /* Firefox */
-webkit-animation: fadein 3s; /* Safari and Chrome */
-o-animation: fadein 3s; /* Opera */ 

}



rdetails > rparagraph {
margin-right: 24px;

animation: fade in 3s;
-moz-animation: fadein 3s; /* Firefox */
-webkit-animation: fadein 3s; /* Safari and Chrome */
-o-animation: fadein 3s; /* Opera */

}

rdetails rdetails {
margin-right: 36px;
animation: fadein 3s;
-moz-animation: fadein 3s; /* Firefox */
-webkit-animation: fadein 3s; /* Safari and Chrome */
-o-animation: fadein 3s; /* Opera */

}

rdetails rdetails rsummary {
font-size: 16px;
animation: fadein 3s;
-moz-animation: fadein 3s; /* Firefox */
-webkit-animation: fadein 3s; /* Safari and Chrome */
-o-animation: fadein 3s; /* Opera */

}

@keyframes fadein {
from {
opacity:0;
}
to {
opacity:1;
}
}
@-moz-keyframes fadein { /* Firefox */
from {
opacity:0;
}
to {
opacity:1;
}
}
@-webkit-keyframes fadein { /* Safari and Chrome */
from {
opacity:0;
}
to {
opacity:1;
}
}
@- o-keyframes fadein { /* Opera */
from {
opacity:0;
}
to {
opacity: 1;
}
}

Since I want two versions with one marker floating to the left (which is already working correctly) and one to the right, it is crucial for the right one to function as expected. Alternatively, if there's a way to display or hide the text by clicking on the banner itself rather than using a +/- symbol, I'd greatly appreciate it. This method aligns with how I envision it working, even though it requires removing the hyperlink linked to the image – not a problem. This issue has been bothering me for a couple of days now, so any assistance would be highly appreciated. Thank you.

csswebkitalignmenthideshow

Answer №1

It seems you might be encountering an issue with using tags that are not defined in the specifications. The <details> and <summary> tags are crucial for providing the hide/expand functionality, and simply renaming them won't work. Additionally, support for these elements is limited, with only Chrome, Safari, and Opera offering compatibility (http://caniuse.com/#search=details).

Your usage of non-standard tags like <paragraph> and <rparagraph> instead of the standard <p> tag may lead to unpredictable results.

If you want to ensure consistent hide/expand behavior across browsers where supported, it's recommended to stick with the officially recognized tags. Alternatively, if broader support is needed, consider implementing a fallback solution using Javascript or jQuery, like the one mentioned here: .

Answer №2

Utilizing details and summary tags across different browsers

While working on some projects that involved using details and summary tags, I encountered a compatibility issue among various browsers. After researching multiple sources and facing some confusion, I have consolidated my findings here.

1. To address compatibility issues, consider adjusting your CSS for details and summary tags based on Nicolas Gallagher's git.io/normalize:

details, summary { display: block; }

2. Review this CSS configuration in the following JSFIDDLE sample in JSFIDDLE
3. When structuring your HTML, remember to ensure that ALL details CHILDREN are contained within HTML tags such as p, a, div, or other elements; otherwise, text outside of HTML tags may only display properly in certain browsers.
4. For handling states in JQuery, utilize a simple code snippet like the one provided in this JSFIDDLE sample in JSFIDDLE

Note: This implementation is lightweight and offers smooth performance. Feel free to share your feedback with me.

Test it out on JSFIDDLE and be sure to include any code comments

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