@import "../chem4free.css";


sup, sub {
  vertical-align:0;
  position:relative;
}

sup {
  bottom:1ex;
}

sub {
  top:0.8ex;
}

h2 {
  font-size:17px;
  line-height:20px;
  text-align:left;
  font-weight:bold;
}

footer {
  font-size:16px;
  text-align: center;
}

table {
  width:100%;
  table-layout: auto;
  margin:auto;
}

td {
  // font-size:16px;
  vertical-align: top;
  text-align: left;
}
.ex {
  padding:10px;
  border:1px solid black;
  margin:0px;
}
img {
  max-width: 100%;
  height: auto;
}