body {
    background-image: linear-gradient(#45bbd8, #6dd5ed);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

#maindiv {
    margin-top: 100px;
}

h1 {
    font-size: 100px;
}

h2 {
    border-radius: 10px;
    width: 50%;
    height: 90px;
    font-size: 30px;
    border: 1px solid #79bccd;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #9ad0de;
}

.cen {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 80%;
}

.gr {
    padding: 20px;
    font-size: 15px;
    margin: 10px;
    border-radius: 10px;
    font-size:20px;
    border: 1px solid #79bccd;
    width: 50%;
    background-color: #9ad0de;
}
.gr:hover{
    opacity: 0.5s;
}
.in{
    float: left;
}
.btn{
    width: 200px;
    height: 60px;
    margin-top: 30px;
    font-size: 25px;
    
}


.dra{
    background-color: red;
}
.lit{
    background-color: greenyellow;
}