Html, card как убрать белую форму

     body {
        background: #332A0F;
        color: white;
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
    }

    header {
        padding: 10px 0;
    }

    main {
        padding: 20px;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
    }

    h1, h3 {
        text-align: center;
    }

    ul {
        list-style-type: none;
        padding: 0;
    }

    li {
        margin-bottom: 15px;
    }

    img {
        max-width: 100%;
        height: auto;
    }

    .card {
        margin-top: 20px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 10px;
        color: white;
    } 

    iframe {
        width: 100%;
        height: 400px;
        border: none;
    }

    .col-3 {
        text-align: center;
    }

    .bg-success {
        --bs-bg-opacity: 1;
        background-color: rgba(var(--bs-success-rgb), var(--bs-bg-opacity)) !important;
      }

      body {
        background-image: none;
    }
    h1, h3 {
        color: #333; 
        font-family: Arial, sans-serif;
    }
    
    ul li {
        margin-bottom: 10px; 
    }
    
    .card {
        border: 1px solid #ccc; 
        border-radius: 5px; 
        padding: 10px; 
    }
    
    .card-header {
        background-color: #f8f9fa
        color #333; 
        font-weight: bold;
    }
    
    .card-body {
        padding: 10px;
    }
 

     .btn-dark {
        background-color: #343a40; 
        color: #fff; 
        border: none;
        padding: 5px 10px;
        text-decoration: none;
    }
    
    .btn-dark:hover {
        background-color: #212529; 
    }
    img {
        border: 2px solid #332A0F;
        max-width: 100%;
        height: auto;
        border-radius: 5px; 
        margin-bottom: 10px;
    }
    .lt-normal-form {

        background-color:transparent;

           }

           div{
            width: 300px;
            height: 300px;
            position: absolute;
            top: 0px;
            left: 0px;
      }
       
      #block1{
          background-color: red;
          opacity: 0.7;
      }