前端css背景渐变

• 从上到下

  .bg {
      background-image: linear-gradient(red,yellow); 
  }

• 从左到右

  .bg {
    background-image: linear-gradient(to right, red , yellow);
  }

• 对角　　

  .bg {
    background-image: linear-gradient(to bottom right, red, yellow);
  }