.problemheader {
    text-align: center;
}

.problembody {
    font-family: 'Times New Roman', Georgia, serif;
    font-size: 1.1em;
    text-align: justify;
    padding-top: 1.5em;
}

.problembody h2, .problembody h3, .problembody table.sample th {
    font-family: Arial, Helvetica, sans-serif;
}

div.minipage { 
  display: inline-block;
}

div.illustration {
    float: right;
    padding-left: 20px;
}

img.illustration {
    width: 100%;
}

div.figure {
  display: block;
  float: none;
  margin-left: auto;
  margin-right: auto;
}

.illustration div.description {
    font-size: 8pt;
    text-align: right;
}

.problembody p {
  text-align: justify;
}

td {
  vertical-align:top;
}

table, table td {
   border: 0;
}

table.tabular p {
    margin: 0;
}

table.sample {
    width: 100%;
}

table.sample th {
    text-align: left;
    width: 50%;    
}

table.sample td {
    border: 1px solid black;
}

div.sampleinteractionread {
    border: 1px solid black;
    width: 60%;
    float: left;
    margin: 3px 0px 3px 0px;
}

.sampleinteractionread pre {
    margin: 1px 5px 1px 5px;
}

div.sampleinteractionwrite {
    border: 1px solid black;
    width: 60%;
    float: right;
    margin: 3px 0px 3px 0px;
}

.sampleinteractionwrite pre {
    margin: 1px 5px 1px 5px;
}