Answers for "width size according to text content css"

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>

how to change text size in css

.class{
  	font-size: 100%;
}

.class{
  	font-size: 20em;
}

.class{
  	font-size: 20px;
}

.class{
  	font-size: 20pt:
}