form {
    margin-top: 100px;
    margin-left: 40px
  }
  .input-field {
    position: relative;
    width: 250px;
    height: 44px;
    line-height: 44px;
    background-color: red;



  }
  #label1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    color: black;

    transition: 0.2s all;
    cursor: text;
    background-color: aquamarine;
    
  }
  #name {
    width: 100%;
    border: 0;
    outline: 0;
    padding: 10px;
    border-bottom: 2px solid black;
    box-shadow: none;
    color:red;
    background-color:aquamarine;


  }
  #name:invalid {
    outline: 0;
   
  }
  #name:focus,
  #name:valid {
    border-color: black;
  }
  #name:focus~#label1,
  #name:valid~#label1 {
    font-size: 20px;
    font-weight: bold;
    top: -24px;
    color: red;
  }