style.css

body {
    background-color: #FFCDFF;
}

@font-face {
    font-family: 'Cafe24ClassicType-Regular';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2210-2@1.0/Cafe24ClassicType-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'NanumSquareNeo-Variable';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_11-01@1.0/NanumSquareNeo-Variable.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'NeoDunggeunmoPro-Regular';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302@1.0/NeoDunggeunmoPro-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

#title {
    font-size: 60px;
    color: #FF85CA;
    text-align: center;
    animation: fadein 2.5s;
    font-weight: bold;
    font-family: 'Cafe24ClassicType-Regular';
}

@keyframes fadein {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

#input {
    text-align: center;
    font-size: 25px;
    font-family: 'NanumSquareNeo-Variable';
}

#MyName {
    font-family: 'NanumSquareNeo-Variable';
}

#YourName {
    font-family: 'NanumSquareNeo-Variable';
}

#mybtn {
    font-family: 'NeoDunggeunmoPro-Regular';
    font-size: 40px;
    border: none;
    cursor: pointer;
    color: #f154ad;
    font-weight: bold;
    background-color: #FFCDFF;
}

#rebtn {
    font-family: 'NeoDunggeunmoPro-Regular';
    font-size: 40px;
    border: none;
    color: #eb9ac8;
    cursor: pointer;
    font-weight: bold;
    background-color: #FFCDFF;
}

#result {
    text-align: center;
    font-size: 25px;
    font-family: 'NanumSquareNeo-Variable';
}

.g_bday1 {
    font-size: 50px;
    color: #FF85FF;
    font-family: 'Cafe24ClassicType-Regular';
}

.b_bday1 {
    font-size: 50px;
    color: #79AAFF;
    font-family: 'Cafe24ClassicType-Regular';
}

.anv-100 {
    font-size: 50px;
    color: white;
    font-family: 'Cafe24ClassicType-Regular';
}

.anv-200 {
    font-size: 50px;
    color: white;
    font-family: 'Cafe24ClassicType-Regular';
}

.anv-1year {
    font-size: 50px;
    color: white;
    font-family: 'Cafe24ClassicType-Regular';
}

.anv-2year {
    font-size: 50px;
    color: white;
    font-family: 'Cafe24ClassicType-Regular';
}