body{
    background:black no-repeat scroll left ;
}
body{
    max-height: 100%;
    background-image: url("images/bg_home.jpg");
    background-repeat: no-repeat;
    background-size: 100%;
    background-attachment: scroll;
}
.topnav{
    background-color: rgb(184, 6, 6);
    overflow: hidden;
    width:100%;
    display: inline-flex;
}
.topnav a{
    float:right;
    color:#f2f2f2;
    text-align: right;
    padding:14px 16px;
    text-decoration: none;
    font-size: 17px; 
}   
.topnav a:hover{
    background-color: #ddd;
    color:black
}

.topnav a.active{
    background-color: #04AA6D;
    color:black;
}
.panels {
    font-size: 25px;
    float:left;
    width: 1420px;
    height: 600px;
    background-color: rgb(0, 0, 0);
    opacity: 0.8;
    border: 1px solid #000; 
    padding: 0px; 
    padding-right: 30px;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2); 
    margin: 20px ;
    border-radius: 10px; 
    background-size: cover;
    background-repeat: no-repeat;
  }
.left{
    float:left;
    margin-top: 30px;
    margin-left: 40px;
    height:400;
    width:400;
    color:white;
}
.right{
    float:right;
    margin-top: 30px;
    margin-left: 10px;
    height:400;
    width:400;
    color:white;
}
.center{
    float:right;
    margin-top: 30px;
    margin-left: 10px;
    height:400;
    width:400;
    color:white;
}
  .panels a:link{
    color:inherit;
    text-decoration:none;
  }
.but{
    font-size:25px;
    color:black;
    width:250px;
    height:40px;
    margin-left: 100px;
    background-color: #00ffa2;
    border-radius: 10px;
    cursor: pointer;
}
.but1{
    font-size:25px;
    color:black;
    width:200px;
    height:40px;
    margin-left:600px;
    background-color: #00ffa2;
    border-radius: 10px;
    cursor: pointer;
}