.section {
    overflow-y: auto;
    width: 100%;
    height: 500px;
    text-align: left;
    margin: 1.5rem auto;
}


ul li,
ol li,
p,
h2 {
    text-align: left;
    margin-top: 1.5rem;
}

ol li {
    margin-left: 1.5rem;
}

code {
    color: #ff357c;
}

[data-javascript] {
    color: pink;
}

strong {
    color: #ffd166;
}

h1.lowercase,
h2.lowercase,
h3.lowercase,
h4.lowercase {
    text-transform: lowercase;
}

h1.capitalize,
h2.capitalize,
h3.capitalize,
h4.capitalize {
    text-transform: capitalize;
}

h1.sentence,
h2.sentence,
h3.sentence,
h4.sentence {
    text-transform: none;
}

/* slide 2 */
.change-color {
    background: red;
    width: 250px;
    height: 250px;
    margin: 0 auto;
}

.btn {
    margin: 1.5rem auto;
    text-align: center;
    display: flex;
    padding: 5px 10px;
}

.notes {
    font-size: 1.5rem;
}

.center {
    text-align: center;
    margin: 0 auto;
}

/*  for the image mapping example */

#images {
    margin: 0 auto;
    display: block;
    text-align: center;
}

/* styling fro toggleSrc hiddenCan/VisibleCan src attribute */
#imageBtn {
    padding: 10px;
    font-size: 2.25rem;
    background: #e50098;
    color: #fff;
    box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    outline: none;
    border: none;
    margin: 0 auto;
    display: block;
    text-align: center;
}