Vertical scrollbar

[xgusto]

Is your feature request related to a problem? Please describe

When I write a blblogock and use syntaxhighlighter, there is no vertical scrollbar. If the code has 200 lines, the web page is very long.

Describe the solution you'd like

It is possible to add a function to the syntaxhighlighter settings where you can set the length of the displayed code (e.g. 30 lines, etc.).

Describe alternatives you've considered

Now I set it in additional css with this code

div.syntaxhighlighter, 
.syntaxhighlighter table {
    max-height: 500px !important;
    overflow-y: auto !important;
}