How can i increase the width of a single post

I’m starting to get the feeling that this isn’t possible (or at least not easily)
since .timeline-container does not know what post we are in, therefore i can’t move it sideways only for that specific one post section[data-topic-id="1094"]

Anyone has any opinions on this?

Note, here’s my current css:

section[data-topic-id="1094"] .row {
  margin-left: -100px;
  
  
  .topic-body {
    width: 90%;
   }
}

.timeline-container {
    background: yellow;
    left: 360px;
}