style.css

    *{
    padding: 0;
    margin: 0;
}
body{
    margin-top: 25vh;
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}
.main{
    border: 7px solid rgb(1, 9, 163);
    width: fit-content;
    height: fit-content;
    padding: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border-radius: 20px;
}
.main .align{
    margin: 5px;
}
input{
    border-radius: 10px;
    margin-right: 112px;
    padding: 20%;
    text-align: center;
    background: linear-gradient(to right, rgb(228, 228, 253),rgb(163, 163, 255),rgb(105, 105, 245));
}
button{
    border-radius: 10px;
    height: 32px;
    width: 97px;
    background: linear-gradient(to left bottom, rgb(213, 213, 251),rgb(163, 163, 255),rgb(62, 62, 255));
    transition: 1s;
}
button:hover{
    background: linear-gradient(to right top, rgb(213, 213, 251),rgb(163, 163, 255),rgb(62, 62, 255));
}