나눔스퀘어 variable질문

@font-face {
    font-family: 'NanumSquareNeo';
    font-weight: 300;
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-aLt.eot);
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-aLt.eot?#iefix) format("embedded-opentype"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-aLt.woff) format("woff"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-aLt.ttf) format("truetype");
}

@font-face {
    font-family: 'NanumSquareNeo';
    font-weight: 400;
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.eot);
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.eot?#iefix) format("embedded-opentype"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.woff) format("woff"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.ttf) format("truetype");
}

@font-face {
    font-family: 'NanumSquareNeo';
    font-weight: 700;
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-cBd.eot);
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-cBd.eot?#iefix) format("embedded-opentype"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-cBd.woff) format("woff"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-cBd.ttf) format("truetype");
}

@font-face {
    font-family: 'NanumSquareNeo';
    font-weight: 800;
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-dEb.eot);
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-dEb.eot?#iefix) format("embedded-opentype"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-dEb.woff) format("woff"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-dEb.ttf) format("truetype");
}

@font-face {
    font-family: 'NanumSquareNeo';
    font-weight: 900;
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-eHv.eot);
    src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-eHv.eot?#iefix) format("embedded-opentype"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-eHv.woff) format("woff"), url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-eHv.ttf) format("truetype");
}