Hi,
Browsing the (very pretty) new documentation with Firefox, I noticed
that selecting text was slow, especially on large pages. For example, on
the module index page, it could take up to 1 second until the blue
selection background would appear after I had selected some text with
the mouse.
I figured it could have something to do with the style sheet and by
commenting out various parts of default.css, I narrowed the cause down
to this:
*:hover > a.headerlink,
*:hover > a.headerlink,
*:hover > a.headerlink,
*:hover > a.headerlink,
*:hover > a.headerlink,
*:hover > a.headerlink {
visibility: visible;
}
Most likely the problem is with the *:hover quantifier. When the mouse
hovers over any element, Firefox has to check if there's a a.headerlink
in the element. After changing *:hover to the specific elements h1-h6
and dt (are these all?), text selection is as smooth as it should be and
maybe even overall display speed is better.
Attached is a patch for this, which also removes some (unnecessary?)
duplication.
What do you think, could you commit the patch?
Robin
Index: sphinx/style/default.css
===================================================================
--- sphinx/style/default.css (revision 57882)
+++ sphinx/style/default.css (working copy)
@@ -529,11 +529,6 @@
div.body h5 { font-size: 110%; }
div.body h6 { font-size: 100%; }
-a.headerlink,
-a.headerlink,
-a.headerlink,
-a.headerlink,
-a.headerlink,
a.headerlink {
color: #c60f0f;
font-size: 0.8em;
@@ -542,20 +537,16 @@
visibility: hidden;
}
-*:hover > a.headerlink,
-*:hover > a.headerlink,
-*:hover > a.headerlink,
-*:hover > a.headerlink,
-*:hover > a.headerlink,
-*:hover > a.headerlink {
+h1:hover > a.headerlink,
+h2:hover > a.headerlink,
+h3:hover > a.headerlink,
+h4:hover > a.headerlink,
+h5:hover > a.headerlink,
+h6:hover > a.headerlink,
+dt:hover > a.headerlink {
visibility: visible;
}
-a.headerlink:hover,
-a.headerlink:hover,
-a.headerlink:hover,
-a.headerlink:hover,
-a.headerlink:hover,
a.headerlink:hover {
background-color: #c60f0f;
color: white;
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