html, body {
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}


/* flex layout */

body {
  display: flex;
  flex-direction: row;
}

#chart_1 {
  flex-grow: 2;
  width: 0; /* necessary hack. see README */
}
#side {
  flex-grow: 1;
  width: 0;
  
  display: flex;
  flex-direction: column;
}
#chart_2 {
  flex-grow: 1;
  height: 0;
}
#chart_3 {
  flex-grow: 1;
  height: 0;
}