html {
    font-size: 100%;
}

body {
    margin: 0 auto;
    padding: 50px;
    font-family: "Georgia", serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    background-color: #f8f8f8;
}

#wrap {
    max-width: 800px;
    background-color: #fff;
    padding: 80px;
    margin: 0 auto;
    border: 1px solid #ccc;
}

h1 {
    margin: 0 0 40px;
    padding: 0;
    font-weight: normal;
    line-height: 1.2;
    padding: 16px 0;
    font-size: 24px;
    border-top: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
}

h1 a {
    float: right;
    text-decoration: none;
    padding-right: 20px;
}

ul, ol {
    margin: 36px 0px;
    padding: 0 0 0 16px;
}

ul ul, ol ol, ul ol, ol ul {
    margin: 0 8px;
}

li {
    margin: 0;
    padding: 0;
}

pre {
    font-size: 13px;
    font-family: monospace;
    color: #222;
    background-color: #f8f8f8;
    margin: 32px 0;
    padding: 18px 24px;
    border-top: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    overflow: auto;
}

.button {
    background-color: #eee;
    cursor: pointer;
    padding: 20px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 16px;
    font-family: "Georgia", serif;
    margin-top: 5px;
}

.active, .button:hover {
    background-color: #ccc;
}

.menu {
    padding: 0 20px;
}

.panel {
    padding: 0 20px;
    background-color: white;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}

.panel.last pre {
    margin-bottom: 0;
}

.button:after {
    content: '\02795'; /* Unicode character for "plus" sign (+) */
    font-size: 10px;
    color: red;
    float: right;
    margin-left: 5px;
}

.active:after {
    content: "\2796"; /* Unicode character for "minus" sign (-) */
}
