body {
    font-family: 'Open Sans', Verdana, Geneva, sans-serif, sans-serif;
    height: auto;
}
#footer {
    border-top: thin solid #999;
    font-size: 80%;
    margin-top: 9ex;
    margin-bottom: 5ex;
    padding-top: 0.5ex;
    width: 100%;
}
#footer .copyright-link {
    padding: 0;
    text-align: left;
}
#footer .usage {
    white-space: nowrap;
    display: inline-block;
}
#footer .references-link {
    padding: 0;
    text-align: right;
}
#questions {
    border: thin solid #ccc;
    padding: 1em;
    margin-bottom: 2em;
}
.question {
    position: relative;
    font-size: 79%;
}
.question-text {
    display: inline;
}
.show-answer {
    display: none;
}
.correct .fa {
    color: #99C68E;
    font-size: 200%;
}
.incorrect .fa {
    color: #E55451;
    font-size: 200%;
}
.question .correct {
    visibility: hidden;
    display: inline;
}
.question .incorrect {
    visibility: hidden;
    display: none;
}
.question.correct .correct,
.question.incorrect .incorrect {
    visibility: visible;
    display: inline;
}
.question.correct .incorrect,
.question.incorrect .correct {
    display: none;
}
/* Borrowed from Foundation 6 */
.callout {
    margin: 0 0 1rem;
    padding: 1rem;
    border: 1px solid rgba(10,10,10,.25);
    border-radius: 0;
    position: relative;
    background-color: #fff;
}
.callout.primary {
    background-color: #def0fc;
}