style.css

body {

  padding: 8px;
  font-size: 14px;
  font-family: "Helvetica Neue", Helvetica;
}
div.chart_container{
    width: 50%;
    float: left;
    display: inline;

}
/* navbar mobile*/
@media screen and (max-width: 45em) {

  div.chart_container{
    width: 100%;
    padding: 5px;
    float: left;
    display: inline;
  }

}

}

h3{
    width: 100vw;
    display: block;
    float: left;
}

body{
    max-width: 1200px;
    margin: auto;

    font-family: sans-serif;
}
textarea{
  width: 100%;
  z-index: auto;
  position: relative;
  line-height: 55px;
  font-size: 2rem;
  transition: none;
  margin: 0px;
  height: 3rem;
  overflow: hidden;
  resize: none;
  background-color: transparent !important;
}
div.chart_container{
    cursor: zoom-in;
}
div.chart_container.zoom{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    cursor: zoom-out;
}