suricata/doc/userguide/_static/css/suricata.css

.example-rule {
    padding: 12px 12px;
    font-family: Consolas,"Andale Mono WT","Andale Mono","Lucida Console","Lucida Sans Typewriter","DejaVu Sans Mono","Bitstream Vera Sans Mono","Liberation Mono","Nimbus Mono L",Monaco,"Courier New",Courier,monospace;
    font-size: 12px;
    line-height: 1.5;
    display: block;
    overflow: auto;
    color: #404040;

    border: 1px solid #e1e4e5;
    background: #fff;
    margin: 1px 0 24px 0;
}
.example-rule-emphasis {
    color: #f00;
    font-weight: bold;
}

.example-rule-action {
    color: #f00;
}
.example-rule-header {
    color: #090;
}
.example-rule-options {
    color: #00f;
}

/* Make tables wrap text to avoid requiring the user to horizontally
 * scroll. */
.wy-table-responsive table td, .wy-table-responsive table th {
    white-space: inherit;
    vertical-align: top !important;
}