Answers for "highlight text background color css"

css selected color

::selection {
    background-color: #222;
    color: white;
}

html highlight text

For HTML5: (with 'mark' tag)

<p>Do not forget to buy <mark>milk</mark> today.</p> 

In CSS file: (To customize highlight)

mark {
  background-color: yellow;
  color: black;
}