body {
    background-color:bisque;
    width: 100vw;
    height: 100vh;
    display: grid;
    justify-content: center;
    align-content: center;
    font-family: Verdana, "微软雅黑", Tahoma, sans-serif;
    font-size: medium;
    grid-template-rows: 60px 100px 100px;
    grid-template-columns: 500px;
    grid-template-areas: 'prompt_message_zone' 'info_zone' 'button_zone';
}

#promptMessage {
    grid-area: prompt_message_zone;
    width: 350px;
    height: 50px;
    text-align: center;
    font-size: 35px;
    justify-self: center;
    align-self: center;
}

#rollDisplay {
    grid-area: info_zone;
    width: 500px;
    height: 50px;
    color:blueviolet;
    justify-self: center;
    align-self: center;
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    padding-top: 20px;
}

button#buttonRoll {
    grid-area: button_zone;
    width: 200px;
    height: 60px;
    background-color: #ccc;
    justify-self: center;
    align-self: center;
    text-align: center;
    font-size: 15px;
    border: 2px solid #ccc;
    border-radius: 10px;
    box-shadow: 0 0 10px #444444;
}