* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif, Arial, Helvetica, sans-serif;
}

html {
    font-size: 62.5%;
}

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgb(226, 226, 226);
    color: #047e00;
}

.main-body {
    width: 90%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.typing_section {
    text-align: center;

}

#textarea {
    border: .2rem solid #047e00;
    border-radius: .2rem;
    width: 98%;
    height: 20rem;
    padding: 1rem 2rem;
    font-size: 1.6rem;
}

#btn {
    display: inline-block;
    padding: 1rem 2.4rem;
    border: none;
    border-radius: 1rem;
    background-color: #047e00;
    ;
    color: #fff;
    font-size: 1.8rem;
    margin-top: 1.6rem;
    cursor: pointer;
}

h2 {
    font-size: 2.4rem;
    text-transform: capitalize;
    text-align: center;
    color: #047e00;
}

#showSentence,
#score {
    width: 98%;
    font-size: 1.6rem;
    margin: 2rem 0;
    letter-spacing: .02rem;
    text-align: center;
    color: black;
}

@media (min-width: 1600px) {
    .typing_section {
        width: 48%;

    }

    #textarea {
        border-radius: .4rem;
        width: 98%;
        height: 20rem;
        padding: 1rem 2rem;
        font-size: 1.6rem;
    }

    #btn {
        padding: 2rem 4rem;
        font-size: 3rem;
        margin-top: 3rem;
        border-radius: 1.2rem;
    }

    h2 {
        font-size: 6rem;
    }

    #showSentence,
    #score {
        width: 70%;
        font-size: 3rem;
        margin: 3rem 0;
        letter-spacing: .3rem;
    }
}