styles.css

.que.pmatch .answer {
    padding: 0.3em;
    width: auto;
    display: inline;
}
.que.pmatch .qtext textarea,
.que.pmatch .ablock textarea {
    max-width: 100%;
}

/* Editing form. Style repeated elements*/
#page-question-type-pmatch .mform .textareamonospace {
    white-space: pre;
    font-family: Andale Mono, Monaco, Courier New, DejaVu Sans Mono, monospace;
}

/* Top */
body#page-question-type-pmatch div[id^=fitem_id_][id*=answer_],
body#page-question-type-pmatch #fitem_id_addanswers + .fitem {
    background: #EEE;
    margin-top: 0;
    margin-bottom: 0;
    padding-bottom: 5px;
    padding-top: 5px;
    border: 1px solid #BBB;
    border-bottom: 0;
}

body#page-question-type-pmatch div[id^=fitem_id_][id*=_answer_] .fitemtitle,
body#page-question-type-pmatch #fitem_id_addanswers + .fitem .fitemtitle {
    font-weight: bold;
}

/* Middle */
body#page-question-type-pmatch div[id^=fitem_id_][id*=fraction_],
body#page-question-type-pmatch #fitem_id_addanswers + .fitem + .fitem {
    background: #EEE;
    margin-bottom: 0;
    margin-top: 0;
    padding-bottom: 5px;
    padding-top: 5px;
    border: 1px solid #BBB;
    border-top: 0;
    border-bottom: 0;
}

/* Bottom */
body#page-question-type-pmatch div[id^=fitem_id_][id*=feedback_],
body#page-question-type-pmatch div[id^=fitem_id_][id*=otherfeedback] {
    background: #EEE;
    margin-bottom: 2em;
    margin-top: 0;
    padding-bottom: 5px;
    padding-top: 5px;
    border: 1px solid #BBB;
    border-top: 0;
}
body#page-question-type-pmatch #fitem_id_addanswers {
    margin-bottom: 2em;
}
body#page-question-type-pmatch #fitem_id_answer_0 {
    margin-top: 1em;
}

/* Styles for the question-testing interface. */
.qtype_pmatch-selftest-missed-negative {
    font-weight: bold;
    color: #f00;
}

.qtype_pmatch-selftest-null {
    font-weight: bold;
    color: #B38686;
}

.qtype_pmatch-selftest-missed-positive {
    font-weight: bold;
    color: #00f;
}

.que.pmatch .formulation .questiontestslink {
    float: right;
    font-size: 0.7em;
}

.que.pmatch .formulation .questiontestslink {
    float: right;
    font-size: 0.7em;
}