style.css

      *,
      *::before,
      *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: "poppins", "sans-serif";
      }

      main {
        height: 100vh;
         width: 100%; 
        overflow-x: hidden;
        perspective: 10px;
      }

      .container {
        position: relative;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        transform-style: preserve-3d;
        z-index: -1;
      }

      .container img {
        position: absolute;
        height: 100%;
        width: 100%;
        object-fit: cover;
        z-index: -1;
      }

     

      .container h1 {
        position: absolute;
        top: 3rem;
        color: #fff;
        left: 50%;
        transform: translateX(-50%);
        text-transform: uppercase;
        font-size: 10rem;
        font-weight: 700;
        text-shadow: 0 0 2px black;
      }

      section {
        background: rgb(45, 45, 45);
        color: #fff;
        padding: 5rem 0px;
      }

      section h2 {
        font-size: 5rem;
        padding: 0 10rem;
      }

      .text {
        font-size: 1.5rem;
        padding: 0 10rem;
        margin: 5rem 0;
      }

      .bg1 {
        background-image: url(image/Solar\ Panels1.jpg);
      }

      .bg2 {
        background-image: url(image/wind\ turbine\ 0.png);
      }

      .bg3 {
        background-image: url(image/Pellet\ Heaters.jpg);
      }
      .bg4 {
        background-image: url(image/Rain-Water-Harvesting-1-new.jpg);
      }
      .bg5 {
        background-image: url(image/Biomass\ Stoves\ 3.jpg);
      }
      .bg6 {
        background-image: url(image/Geothermal-Heat-Pumps-.jpg);
      }
      .bg7 {
        background-image: url(image/hydroelectric\ g\ 0.png);
      }

      .box {
        height: 500px;
        width: 100%;
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        position: relative;
      }

      .box h4 {
        font-size: 3.5rem;
        color: black;
        font-weight: 600;
        text-transform: uppercase;
        background-color: white;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        padding: 0 20px;
      }