What is the title of the message?

Single-line title, double-line title, multi-line title.

1. Single-line headline: This headline directly describes the core information of news events, mostly narrative. For example, "New Discovery of Ancient Human Remains in Wuxia Cave of the Yangtze River-Directly Report a' New Discovery'".

2. Double-line title: The title consists of two lines of fonts with different font sizes, which are divided into two forms: introduction and theme: introduction, also called shoulder title and eyebrow title, is a part of the auxiliary theme, arranged above (horizontally) or in front (vertically) of the theme, and is the first meaning and prelude of the theme. The function of topic introduction is to explain the background and reasons of news events, or to reveal the significance and content of the theme, or to strengthen the atmosphere of the theme. The theme, also called the headline, is the most striking place in the headline, and its task is to highlight the most important news facts. The font size is the largest. Topic+subtitle: subtitle, also called subtitle or subtitle, is the auxiliary title of the topic (topic). The main function of subtitle is to supplement the deficiency of the theme, and often supplement unimportant news facts to make the theme more complete and prominent.

3. Multi-line title: the title is more than three lines, and three fonts with different font sizes are used. The content of news is more important. This kind of title generally has an introduction, a theme and a subtitle.