*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body{
background: blue;
font-family: Arial, Helvetica, sans-serif;
border-color: #000;
}
 
#triangle-right {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 100px solid #00ff54;
    transition: all 0.5s ease-in;
  }

 #triangle-right.change-me{
    border-left: 100px solid white;
   translate: 20px;
   transform: translateX(200px) translateY(400px) rotate(20deg) scale(2.5);
  }