.popover {position: fixed;top: 0;left: 0;z-index: 1060;display: none;max-width: 276px;
    font-size: 14px;font-weight: normal;line-height: 1.42857143;text-align: left;white-space: normal;
    background-color: #fff;-webkit-background-clip: padding-box;background-clip: padding-box;
    border: 1px solid #ccc;border: 1px solid rgba(0, 0, 0, .2);border-radius: 6px;
    -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, .2);box-shadow: 0 5px 10px rgba(0, 0, 0, .2)
}
.popover.top {margin-top: -10px}
.popover.right {margin-left: 10px}
.popover.bottom {margin-top: 10px}
.popover.left {margin-left: -10px}
.popover-title {padding: 8px 14px;margin: 0;font-size: 14px;background-color: #f7f7f7;border-bottom: 1px solid #ebebeb;border-radius: 5px 5px 0 0}
.popover-content {padding: 9px 14px; color: black;}
.popover > .arrow,.popover > .arrow:after {position: absolute;display: block;width: 0;height: 0;border-color: transparent;border-style: solid}
.popover > .arrow {border-width: 11px}
.popover > .arrow:after {content: "";border-width: 10px}
.popover.top > .arrow {bottom: -11px;left: 50%;margin-left: -11px;border-top-color: #999;border-top-color: rgba(0, 0, 0, .25);border-bottom-width: 0}
.popover.top > .arrow:after {bottom: 1px;margin-left: -10px;content: " ";border-top-color: #fff;border-bottom-width: 0}
.popover.right > .arrow {top: 50%;left: -11px;margin-top: -11px;border-right-color: #999;border-right-color: rgba(0, 0, 0, .25);border-left-width: 0}
.popover.right > .arrow:after {bottom: -10px;left: 1px;content: " ";border-right-color: #fff;border-left-width: 0}
.popover.bottom > .arrow {top: -11px;left: 50%;margin-left: -11px;border-top-width: 0;border-bottom-color: #999;border-bottom-color: rgba(0, 0, 0, .25)}
.popover.bottom > .arrow:after {top: 1px;margin-left: -10px;content: " ";border-top-width: 0;border-bottom-color: #fff}
.popover.left > .arrow {top: 50%;right: -11px;margin-top: -11px;border-right-width: 0;border-left-color: #999;border-left-color: rgba(0, 0, 0, .25)}
.popover.left > .arrow:after {right: 1px;bottom: -10px;content: " ";border-right-width: 0;border-left-color: #fff}