.chart {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_1 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_1 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_2 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_3 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_4 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_4 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_5 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_5 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_6 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_6 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.chart_7 {
  position: relative;
  display: inline-block;
  width: 150px;
  height: 150px;
  margin-top: 25px;
  margin-bottom: 25px;
  text-align: center;
}
.chart_7 canvas {
  position: absolute;
  top: 0;
  left: 0;
}

.percent {
  display: inline-block;
  line-height: 150px;
  z-index: 2;
  font-size:14px;
}
.percent:after {
  content: '%';
  margin-left: 0.1em;
  font-size: .8em;
}


.span6 {
  float: left;
  width: 50%;
}
@media only screen and (max-width: 600px) {
  li {
    font-size: 14.4px;
  }
}
@media only screen and (max-width: 430px) {
  .span6 {
    float: none;
    width: 100%;
  }
  body {
    padding-top: 0;
  }
  ul {
    height: auto;
    position: static;
  }
  li {
    display: block;
    width: 100%;
  }
  li a {
    white-space: normal;
  }
  a.active:after {
    display: none;
  }
}