nav{
    background-color: rgb(79, 55, 233);
    padding:20px;
    color: white;
}
.card{
    margin-top: 20px;
    margin-left: 20px;
    width: 300px;
    height: 200px;
    display: flexbox;
    float: left;
     
     margin-top: 40px;
}

.card-body{
     background-color: rgb(136, 242, 242);
    height: 150px;
}
.card-text{
    margin-left: 20px;
}