Our CSS styles used to work seamlessly with the <p> tag until the latest Firefox update to version 49.0.1. However, after the update, the text doesn't appear at all when the class is applied to the <p> tag. Removing the class displays the text properly.
Here are the classes and tags being used:
.primaryText {
color: #0000;
}<p class="primaryText">Hello world</p>Did something change with the new Firefox browser?
When using hex RGBA values, the last digit signifies the alpha or transparency level.
The four-digit hex is a limited version of the hexadecimal #RGBA format, only supported on FF (v49).
"#", followed by four hexadecimal characters (0-9, A-F), with each representing red, green, blue, and transparency respectively.
(source: MDN)
It's recommended to use the standard hex formats (#RGB and #RRGGBB) until wider support is available.
#000000 && #000 = Black
#00000000 &&
#0000 = Fully transparent black
This feature is implemented in Chrome Canary (v52) but I have not been able to verify it on Linux.
When defining the color black in hex rgb format, use either #000 for the short form or #000000 for the full form. Avoid using #0000.
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