body {
    margin:1em;
}
p {
    line-height: 1.5;
}
p.caution {
    font-size: 120%;
    font-family: sans-serif;
    color: black;
    background: yellow;
    border: thick solid black;
    padding: 1ex;
}


table {
    margin:auto;
    border:thin solid gray;
    border-spacing:0pt;
}
caption {
    margin:auto;
    font-size:120%;
}
td, th {
    padding: 0.3ex 1ex;
    border:thin solid gray;
}
th {
    color:black;
    background:rgb(224,224,224);
    text-align:left;
}