Text doesn't wrap in CSS Grid

Question

Text doesn't wrap in CSS Grid

I experimented with CSS Grid and got stuck in finding the most efficient ways to wrap text around an element <div>that is partially on top of two other elements <div/>. In fact, as in the figure below, I want the text in red and blue dividers to wrap around a yellow divider, which was partially located in the columns and rows of two other elements. Obviously, this is a Grid-based layout, so I'm not interested in doing this with typical numbers. How can I use CSS Grid to achieve this effect?

Here are my CSS and HTML:

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr;
  grid-gap: 10px;
}

.red {
  background-color: red;
  grid-column: 1 / span 2;
  grid-row: 1 / span 4;
}

.blue {
  background-color: blue;
  grid-column: 3 / span 2;
  grid-row: 1 / span 4;
}

.yellow {
  background-color: yellow;
  grid-column: 2 / span 2;
  grid-row: 2 / 4;
}

<div class="grid">
  <div class="red">According to the Oxford English Dictionary, hello is an alteration of hallo, hollo,[1] which came from Old High German "halâ, holâ, emphatic imperative of halôn, holôn to fetch, used especially in hailing a ferryman."[5] It also connects the development
    of hello to the influence of an earlier form, holla, whose origin is in the French holà (roughly, 'whoa there!', from French là 'there').[6] As in addition to hello, halloo,[7] hallo, hollo, hullo and (rarely) hillo also exist as variants or related
    words, the word can be spelt using any of all five vowels.[8][9][10]</div>
  <div class="blue">The use of hello as a telephone greeting has been credited to Thomas Edison; according to one source, he expressed his surprise with a misheard Hullo.[11] Alexander Graham Bell initially used Ahoy (as used on ships) as a telephone greeting.[12][13]
    However, in 1877, Edison wrote to T.B.A. David, the president of the Central District and Printing Telegraph Company of Pittsburgh: Friend David, I do not think we shall need a call bell as Hello! can be heard 10 to 20 feet away. What you think? Edison
    - P.S. first cost of sender & receiver to manufacture is only $7.00.[14] By 1889, central telephone exchange operators were known as 'hello-girls' because of the association between the greeting and the telephone.[13][15] By 1889, central telephone
    exchange operators were known as 'hello-girls' because of the association between the greeting and the telephone.[13][15] </div>
  <div class="yellow">3</div>
</div>