style.css

:root{
    --color-cover: rgba(210,210,255,0.8);
  }
  
  body{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    margin: 0;
    background-color: hsl(0, 50%, 90%);
  }
  
  .width-img{
    width:100%;
      height: 100%;
  }
  
  body::before{
    content: '';
    position: fixed;
    height: 100%;
    width : 100%;
    z-index: -1;
    background: var(--color-cover);
    background-image:
  url('https://i.pinimg.com/564x/31/14/75/3114752a9d134b3b77789331f8d41743.jpg');
    background-size: cover;
    background-repeat:no-repeat;
    background-position:center;
  }
  
  p,h1{
    margin-top: auto;
    margin-bottom: 5px;
  }
  
  label{
    display: flex;
    align-items: center;
    font-size: 18px;
    margin-bottom: 5px;
  }
  
  .container{
    margin: auto;
  }
  
  @media (min-width: 800px){
    .container{
      max-width: 850px;
    }
  }
  
  .header{
    padding: 30px;
    margin-bottom: 20px;
  }
  
  .text-center{
    text-align: center;
    font-variant: small-caps;
  }
  
  form{
    background: var(--color-cover);
    padding: 2.5rem 0.625rem;
    border-radius: 0.75rem;
  }
  
  @media(min-width: 480px){
    form{
      padding: 2.5rem;
    }
  }
  
  .form-group{
    margin: 0 auto 1.25rem auto;
    padding: 0.25rem;
  }
  
  .form-control{
    display: block;
    width: 100%;
    height: 2.275rem;
    padding: 0.375rem 0.75rem;
    background-color: rgb(252, 232, 255);
    background-clip: padding-box;
    border-radius: 10px;
  }
  
  .input-textarea{
    min-height: 75px;
    width: 100%;
    border-radius:10px;
    background-color: rgb(252, 232, 255);
  }
  
  .input-radio,.input-checkbox{
    margin-right: 7px;
    min-height: 15px;
    min-width: 15px;
  }
  
  .submit-button{
    display: block;
    width: 30%;
    padding: 15px;
   background-color: hsl(0, 50%, 90%);
    border-radius: 10px;
    cursor: pointer;
  }