Answers for "div width to text"

make div the size of the text inside

div {
display: inline-block;
}

stretch text to div width css

div{
  background-color:gold;
  text-align:justify;
}

span{
  background-color:red;
  width:100%;
  height:1em;
  display:inline-block;
}

<div>
  Lorem ipsum sit dolor
  <span> </span>
</div>