Hey @Mystique.
So. If I got you right, you wish to remove the ‘padding’ that is outside of the pane where the text appears.
Add the following CSS snippet (search the forum for how):
.markdown-preview-view .markdown-preview-sizer, .markdown-source-view .CodeMirror {
max-width: 100% !important;
margin: 0;
}
Turn off Readable Line Length to see it in effect.
If you are now bothered by the text to going on for the full width, replace the above code with:
.markdown-preview-view .markdown-preview-sizer, .markdown-source-view .CodeMirror {
width: 100%;
max-width: 670px !important;
margin: 0;
}
Let me know if that is what you were looking for. 