.card{
        width:500px;box-shadow:0 0 20px rgba(0,0,0,0.1); 
    }
    .card .card-body{padding:50px 20px;} 
    .card h1{font-size:60px;}
    .card p{font-size:25px;}
    .btn-primary{
        border-color:#4169E1;color:#fff;background-color:#4169E1;padding:10px;
        font-size:16px;  
    }
    .btn-primary:first-child{
         border-radius:0 0 0 4px;
    }
    .btn-primary:last-child{
         border-radius:0 0 4px 0;
    }
     .btn-primary:hover,.btn-primary:focus,.btn-primary:active,&:not(:disabled):not(.disabled):active {
        border-color:darken(#4169E1, 5%);
        outline: none;box-shadow: none;background: darken(#4169E1, 5%);color:#fff; 
    }
    .text-blue{color:#4169E1;} 
@media(max-width:1199px){
    .card{width:450px;}
    .card .card-body{padding:35px 20px;} 
     .card h1{font-size:45px;}
    .card p{font-size:20px;}
    .btn-primary{
        font-size:14px;padding: 7px; 
    }
}

@media(max-width:767px){
    .card{width:350px;}
    .card .card-body{padding:20px 15px;} 
     .card h1{font-size:40px;}
    .card p{font-size:16px;} 
}

@media(max-width:400px){
    .card{width:100%;margin:15px;}
}