A good practice is to wrap any {% editable %}
, {% content %}
, {% contentblock %}{% endcontentblock %}
etc. into a wrapper element with a specific class and style all the sample elements in this scope.
For example:
<style>
.content-area h1 {
font-size: 24px;
color: red;
}
.content-area p {
font-size: 16px;
color: green;
}
</style>
<div class="content-area">{% content %}</div>
<div class="content-area">{% editable element.description %}</div>
<div class="content-area">{% contentblock %}Hello world!{% endcontentblock %}</div>