.see-console {
    height: 30vh;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    font-size: 2em;
}
.see-console::before {
    content: "실행결과는 콘솔창을 확인하세요";
}
.h1-title {
    display: flex;
    margin-top: 30px;
    justify-content: center;
}