h1 {
    text-align: center;
    display: block;
    font-size: 1.6em !important;
    /* line-height: 1.2em; */
    /* margin-block-start: 0.83em;
    margin-block-end: 0.83em; */
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    margin-top: 5px;

    color: #2c3e50;
    margin-bottom: 20px;
}

h2 {
    font-size: 1.4em !important;
    /* margin-top: 15px; */
    /* margin-bottom: 5px; */
    font-weight: bold;

    color: #3498db;
    margin-top: 40px;
    border-bottom: 2px solid #eee;
    padding-bottom: 5px;
}

h3 {
    font-size: 1.2em !important;
    margin-top: 15px;
    margin-bottom: 5px;
    font-weight: bold;
}

p {
    display: block;
    /* margin-block-start: 1em;
    margin-block-end: 1em; */
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    margin-bottom: 12px;
}

.intro {
    font-style: italic;
    font-size: 0.8em;
    color: #7f8c8d;
    text-align: center;
    margin-bottom: 12px;
}

.highlight {
    background-color: #fffde7;
    padding: 15px;
    border-left: 4px solid #fbc02d;
    margin: 20px 0;
}

.quote {
    font-style: italic;
    color: #555;
    padding-left: 20px;
    border-left: 3px solid #3498db;
    margin: 25px 0;
}

.warning {
    background-color: #ffebee;
    padding: 15px;
    border-left: 4px solid #e53935;
    margin: 20px 0;
}

.tip {
    background-color: #e8f5e9;
    padding: 15px;
    border-left: 4px solid #43a047;
    margin: 20px 0;
}