codebase/scss/vendor/_jquery-sparkline.scss

//
// jQuery Sparkline
//
// Overwrite/Extend styles
// --------------------------------------------------

.jqstooltip {
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    border: none !important;
    background-color: rgba(0,0,0,.75) !important;
}