main {
    padding: 2rem 0; /* 上下|左右　*/
}
.welcome {
    padding: 3rem 0;
    margin-bottom: 2rem;
    background-color: #eee;
    align-items: center;
    display: flex;
    flex-direction: column;
}

.snippet-date {
    margin-bottom: 1rem;
}

.source-code > .highlight {
    padding: 1rem;
    margin-bottom: 1rem;
}


.comment-area {
    border: 2px solid;
    border-color: #ccc;
    padding: 1rem;
}
.comment-text {
    padding: 0 1rem;
    font-size: 1rem;
}
.comment-attributes {
    padding: 0 1rem;
    margin-bottom: 1rem;
    font-size: 0.5rem;
}