Could someone help me to solve that problem

Tell us what’s happening:

Your code so far

  body {
    background-color: black;
    font-family: monospace;
    color: green;
  #orange-text {
    color: orange;
  .pink-text {
    color: pink;
  .blue-text {
    color: blue;
<h1 id="orange-text" class="pink-text:color: pink !important; blue-text" style="color: white">Hello World!</h1>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36.

Link to the challenge:

Go to the CSS sheet and correct it by adding ! important to the .pink-text and remove ! important from the body. Reset your code and add only what I said you should add, no other thing.

Its better you read the tutorial again for better understanding.