// Custom sass code

div#toc-container
  float: right
  display: block
  margin: 1em

div.alert-box
  display: flex !important

// Custom sass code

div#toc-container
  float: right
  display: block
  margin: 1em
  max-width: 35%

div.alert-box
  display: flex !important

Add max-width for TOC box
style/custom: Add max-width for TOC box
