CSS linear-Gradient

HTML

   <div>some text</div>
CSS
   div {
 /* defualt angle: top → bottom /
 / 0~50%: pure color(transparent),50%~100%: pure color(mint) /
 / if second % > first %, display two color block*/
 background-image: linear-gradient(transparent 50%, rgba(173, 234, 234, 0.5) 50%);
}
Display

some text

HTML5 mark tag

HTML
  <mark>some text</mark>
CSS
  mark{
  //change color but can't change make thinner
  color: black;
  background-color: yellow;
  display: inline-block;
}
Display

some text


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