Although the collapse button has an absolute position Internet Explorer
11 needs the left position of that button to be explicitly set to 0
(other browsers do it implicitly due to the absolute position);
otherwise the button appears to the right of the link (and behind the
app content).
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
height: 44px;
margin: 0;
z-index: 110;
+
+ /* Needed for IE11; otherwise the button appears to the right of the
+ * link. */
+ left: 0;
}
&:before {
position: absolute;