style.css

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
  }
  body {
    background-color: #faf8ef;
  }
  .heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  h1 {
    color: #776e65;
  }
  .container {
    position: absolute;
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
  }
  h1 {
    font-size: 4em;
  }
  .score-container {
    color: #776e65;
  }
  #score {
    font-weight: 600;
  }
  .grid {
    width: 25em;
    height: 25em;
    background-color: #cdc1b5;
    border: 5px solid #bbada0;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    border-radius: 0.5em;
  }
  .box {
    width: 97.5px;
    height: 97.5px;
    border: 5px solid #bbada0;
    font-size: 40px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .cover-screen {
    position: absolute;
    top: 0;
    left: 0;
    background-color: #faf8ef;
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #start-button {
    background-color: #8f7a66;
    padding: 1em 2em;
    border: none;
    border-radius: 0.5em;
    font-size: 1em;
    letter-spacing: 0.2px;
    color: #ffffff;
  }
  .hide {
    display: none;
  }
  .box-2 {
    background-color: #eee4da;
    color: #727371;
  }
  .box-4 {
    background-color: #eee1c9;
    color: #727371;
  }
  
  .box-8 {
    background-color: #f3b27a;
    color: white;
  }
  
  .box-16 {
    background-color: #f69664;
    color: white;
  }
  
  .box-32 {
    background-color: #f77c5f;
    color: white;
  }
  
  .box-64 {
    background-color: #f75f3b;
    color: white;
  }
  
  .box-128 {
    background-color: #edd073;
    color: white;
  }
  
  .box-256 {
    background-color: #edcc63;
    color: white;
  }
  
  .box-512 {
    background-color: #edc651;
    color: white;
  }
  
  .box-1024 {
    background-color: #eec744;
    color: white;
  }
  
  .box-2048 {
    background-color: #ecc230;
    color: white;
  }