JSFiddle - React, Tailwind, and code Playground

by 규연 황

HTML

<div class="box">
  <div class="bg"></div>
  <div class="text">text</div>
</div>

<div class="box2">
  <div class="bg"></div>
  <div class="text">text</div>
</div>

SCSS

.box {
  position: relative;
  .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 100%;
    background: #000;
  }
  .text {
    font-size: 40px;
    color: #ffffff;
    mix-blend-mode: difference;
  }
}

.box2 {
  position: relative;
  background: red;
  .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 100%;
    background: #fff;
  }
  .text {
    font-size: 40px;
    color: #000000;
    mix-blend-mode: difference;
  }
}