tooltip {-moz-appearance: none !important;} 
luckymouse said: Pretty sure it's a characteristic of the user's operating system.
Windows XP doesn't have rounded tooltips, WIndows 7 does.
Setting some properties to their default values is not eliminating the rounded corners.
tooltip:not(#asdf):not(#adsf) {
-moz-appearance: none !important;
border-radius: 0 !important; -moz-border-radius: 0 !important;
border: 1px solid black !important;
-noz-border-image: none !important;
background-color: #fff !important;
-moz-box-sizing: content-box !important;
clip: auto !important;
outline: none !important;
background-clip: border-box !important;}
srazzano said: tooltip {
-moz-appearance: none !important;
background: none !important;
border: 1px solid transparent !important;
}
.tooltip-label {
background: #CCC !important;
border: 1px solid #000 !important;
color: red !important;
padding: 4px !important;
text-shadow: black 1px 1px 1px !important;
}
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