.ltx_page_content{ max-width: 70ch; margin: auto; }

body {
  font-family: Times New Roman, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height:1.3 !important;
}

h6.ltx_title_contents{margin:0.5rem 0;}

.ltx_enumerate, .ltx_itemize {
  margin-top:0.2em;
  margin-bottom:0.2em;
  margin-left: -1.3em;  
}

.ltx_toclist {
  margin-left:-1.3em;
}

math[display="inline"] mfrac {
  display: inline-block;   /* make it a box */
  line-height: 1;          /* suppress extra line spacing */
  margin-top: -0.25em;     /* cut top */
  margin-bottom: -0.25em;  /* cut bottom */
/* display: inline-block; 
height: 0; 
overflow: visible;   so content still shows 
vertical-align: middle; */
}