.chart_container{
  position: relative;
  min-height: 210px;
}


.chart canvas {
	position: absolute;
    top: 0;
    left: 0;
}

.percent {  
  display: inline-block;
  line-height: 110px;
  z-index: 1;
  width:220px;
  font-size:40px;
  color:#0095aa;
  position: relative;
  text-align:center;
  margin: 0;
  top: 50px;
}

.percent:after {
  content: '%';*/
  margin-left: 0.1em;  
}