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different behavior of computing div width between desktop and laptop

pchorus
pchorus
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Hi support. I am a developer and I have a strange problem regarding the css styling of a div element. Please see the following codepen: http://codepen.io/pchorus/pen/cdulk

In this example, the div container should have a width of 0px, a height of 0px, and a black top border with a width of 7px. The left and a right borders have a width of 7px as well, but they are transparent. This leads to a black triangle.

When I check the styling of the div element on my desktop, I see the expected values: border left, top and right: 7px width: 0px height: 0px

The same codepen example running on my laptop leads to the following values: border left, top and right: 6.4px rounded to 6px width: 1px height: 0px

Since I use the triangle for a popup, it is necessary to have the exact coordinates. Otherwise there is a gap between the popup and the triangle. Could you please help me with that problem?

Best regards. Pascal

Hi support. I am a developer and I have a strange problem regarding the css styling of a div element. Please see the following codepen: http://codepen.io/pchorus/pen/cdulk In this example, the div container should have a width of 0px, a height of 0px, and a black top border with a width of 7px. The left and a right borders have a width of 7px as well, but they are transparent. This leads to a black triangle. When I check the styling of the div element on my desktop, I see the expected values: border left, top and right: 7px width: 0px height: 0px The same codepen example running on my laptop leads to the following values: border left, top and right: 6.4px rounded to 6px width: 1px height: 0px Since I use the triangle for a popup, it is necessary to have the exact coordinates. Otherwise there is a gap between the popup and the triangle. Could you please help me with that problem? Best regards. Pascal

All Replies (1)

the-edmeister
the-edmeister
  • Moderator
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Try posting at the Web Development / Standards Evangelism forum at MozillaZine. The helpers over there are more knowledgeable about web page development issues with Firefox. http://forums.mozillazine.org/viewforum.php?f=25 You'll need to register and login to be able to post in that forum.