*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
button{
    padding: 10px 20px;
    background-color: black;
    color: white;
    text-align: center;
    margin: auto;
    border-radius: 5px;
}
.box {
    display: flex;
    justify-content: space-around;
    width: 100%;
    height: 90vh;
    gap: 50px;
    padding: 20px;
}

.input, .output {
    border: 4px solid grey;
    width: 49%;
    min-height: 500%;
    overflow-y: auto;
}
.input{
    resize: none;
}
.btn {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}