问题
How can i remove the tooltip from a Slider control (input[range]) in WinJS?

回答1:
Add the ::-ms-tooltip
pseudo element and set display:
to none;
http://msdn.microsoft.com/en-us/library/windows/apps/hh465805.aspx
input[type=range]::-ms-tooltip {
display: none;
}
来源:https://stackoverflow.com/questions/12882348/winjs-remove-tooltip-from-slider