style.css

body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    background: #85c089;
}
.top{
    background-color: #85c089;
    background-image: url("background.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-blend-mode: soft-light;
}
.heading{
    width: 600px;
    height: 280px;
    margin: auto;
    margin-bottom: 70px;
}
.logo{
    display: block;
    margin: auto;
    width: 400px;
}
.title1{
    display: block;
    text-align: center;
    color: white;
    font-size: 100px;
    font-family: "DejaVu Sans Mono", monospace;
    font-weight: bold;
}
.title2{
    display: block;
    margin-top: 15px;
    text-align: center;
    color: white;
    font-family: "DejaVu Sans Mono", monospace;
    font-size: 14pt;

}

a{
    text-decoration: none;
    color: black;
    text-align: center;
}
.start{ 
    margin-top: 25px;
    background-color: rgb(164, 216, 85);
    color: white;
    width: 150px;
    height: 70px;
    font-size: 35px;
    border-radius: 18px;
    border-color: transparent;
    transition: all 0.3s;
}

.start:hover{
    border: solid rgb(164, 216, 85);
    cursor: pointer;
    background-color: transparent;
    color: rgb(255, 255, 255);
    transform: scale(1.2);
}
.display-on-hover {
    display: none;
    margin-bottom: 40px;
}
.statis1{
  display:flex;
  margin-left: 130px;
  margin-right: 100px;
}
.img1{
  width:400px;
  margin:auto;
}

.stats1 {
    width: 150px;
     border: 5px solid #98a39a;
     background: #98a39a;
     padding-top: 13px;
     padding-bottom: 30px;
     border-radius: 10px;
     color: #ffffff;
     font-size: 17px;
     letter-spacing: 1px;
     margin-left: 20%;
     height: 40px;
     margin-bottom: 90px;
     font-weight:300;
     transition: all 0.3s;
     margin:auto;
  }
  
  .stats1:hover span{
    display:none
  }
  
  .stats1:hover:before{
    content:"70% of consumers said they would pay more for brands that are environmentally responsible. (IBM)";
    font-size: 9px;
    padding-top: 5px;
    vertical-align: top;
  }
  
  .stats1:hover{
    transform: scale(2);
    padding-bottom: 105px;
  }
  .img2{
    width:400px;
    margin: auto;
    border-radius: 10px;
  }
  .statis2{
    display: flex;
    justify-content: space-around;
    margin-right: 130px;
    margin-left: 100px;
  }
  .stats2 {
    width: 150px;
    border: 5px solid #98a39a;
    background: #98a39a;
     padding-top: 13px;
     padding-bottom: 30px;  
     border-radius: 10px;
     color: #ffffff;
     font-size: 17px;
     vertical-align: center;
     letter-spacing: 1px;
     margin-right: 20%;
     height: 40px;
     margin-bottom: 90px;
     font-weight:300;
     transition: all 0.3s;
     margin:auto;
  }
  
  .stats2:hover span{
    display:none
  }
  
  .stats2:hover:before{
    content:"A faucet leaking a drop of water per second can add up to 165 gallons a month.";
    font-size: 12px;
    padding-top: 5px;
    vertical-align: top;
  }
  
  .stats2:hover{
    transform: scale(2);
    padding-bottom: 105px;
  }
  .statis3{
    display:flex;
    margin-left: 130px;
    margin-right: 100px;
    margin-bottom: 100px;
  }
  .img3{
    width: 400px;
    margin: auto;
    border-radius: 10px;
  }
  .stats3 {
    width: 150px;
    display:block;
    border: 5px solid #98a39a;
    background: #98a39a;
     padding-top: 13px;
     padding-bottom: 30px;
     border-radius: 10px;
     color: #ffffff;
     font-size: 17px;
     letter-spacing: 1px;
     margin-left: 20%;
     height: 40px;
     margin-bottom: 90px;
     font-weight:300;
     transition: all 0.3s;
     margin: auto;
  }
  
  .stats3:hover span{
    display:none
  }
  
  .stats3:hover:before{
    content:"Currently, we have more than 500 million cars in the world. This number is expected to rise to over a billion by 2030, which means the pollution caused by cars could potentially double by that year.";
    font-size: 8px;
    padding-top: 5px;
    vertical-align: top;
  }
  
  .stats3:hover{
    transform: scale(2);
    padding-bottom: 160px;
  }