* {
    padding: 0;
    margin: 0;
    box-sizing: content-box;
}

body {
    background: #f5f6f7;
    color: #333;
    font-family: 'Nanum Gothic', sans-serif;
}

form {
    width: 500px;
    margin: 20px auto;
}

div.div_JoinInfo {
    padding: 6px;
    margin: 0px 6px;
}

div.div_JoinInfo>h4 {
    font-size: 15px;
    padding: 5px 0;
}

div.div_JoinInfo>p {
    padding: 10px;
    border: 1px solid #ccc;
    background-color: #fff;
}

div.div_JoinInfo>p:focus-within {
    border-color: #99f;
}

div.div_JoinInfo>p>input {
    width: 100%;
    padding: 8px 0;
    border: none;
    outline: 0;
}

div.div_JoinInfo>p>input[type=text] {
    width: 75%;
}

div.div_JoinInfo>p>span {
    color: #8e8e8e;
    padding-left: 10px;
}

form span#resultID,
form span#resultPW {
    color: #f00;
    font-size: 13px;
}