@import url(https://fonts.googleapis.com/css?family=Roboto);

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
}

h1 {
    text-align: center;
}

.half_span {
    width: 50%;
    float: left;
    text-align: center;
}

textarea {
    width: 80%;
}

.content {
    padding-top: 5vh;
}

.func .half_span {
    height: 7rem;
    padding-top: 1rem;
}

button {
    width: 9rem;
    height: 2rem;
    font-size: 1rem;
}

#file_name {
    font-size: 0.5rem;
    padding-top: 5px;
    color: mediumvioletred;
}

.lang {
    padding-right: 1vw;
    padding-top: 1vh;
    text-align: right;
}

a {
    color: blue;
    text-decoration: none;
}

a:hover {
    text-decoration-line: underline;
}

.version {
    font-size: 10px;
    text-align: center;
}

.content_area {
    height: 60vh;
}

#class_name {
    width: 86%;
    background-color: rgba(255, 255, 0, 0.164);
    height: 60vh;
}

#file_name {
    font-size: 20px;
    margin: 15px 0;
}

.content_area {
    color: black;
    font-size: 15px;
}