Hello Phutharin,
It depends a bit on the context of this widget. You can
play around with the margin and padding of this element.
margin-top:0;
padding-top: 0;
If this is not working for you, have a look at https://www.w3schools.com/css/css_positioning.asp :)
You can modify the positioning of the pie chart through css as well, first assign a class in the widget and use this css.
.class > :first-child > :first-child > :first-child{
}
this one is for the pie chart.
.class > :first-child > :first-child > :nth-child(3){
}
this one is for the keys