div,
span {
  color: #fff;
}

.color1 {
  background: #413e3e;
}

.text1 {
  color: #ffc636;
}

.color2 {
  background: #ffc636;
  width: 100px;
  height: 100px;
}

.color3 {
  color: #000;
  background: #ffa5a5;
  width: 300px;
}

.color4 {
  background: #7d5de6;
  font-size: 20px;
}