styles.css

* {
    margin: 0; padding: 0;
}
body {
    /* background: linear-gradient(#FFCE93 20%, #9795FE 20%, #FF9D86 20%, #FFD0EF 20%); */
    background: #FFCE93;
    box-sizing: border-box;
    display: grid;
    place-items: center;
}

.comments-container {
    width: 60%;
    margin: 1rem;
    padding: 2.2rem;
    border-radius: 10px;
    background: #fff;
}

.comment__list {
    display: block;
    list-style: none;
    margin-left: 2rem;
    width: 100%;
}

.comment__list--hide {
    display: none;
}

.comment__list:not(:first-child) {
    margin-left: 2.5rem;
}

.comment__list-item {
    border-left: 1px rgba(0, 0, 0, 0.411) solid;
    width: 100%;
}

.comment {
    box-sizing: border-box;
    width: 100%;
    margin-bottom: 3rem;

    display: grid;
    justify-content: flex-start;
}

.comment__avatar {
    transform: translate(-1.5rem, -10px);
    display: block;
    width: 45px;
    height: 45px;

    flex-shrink: 0;
}

.comment__content {
    min-width: 100%;
    margin: 0;
}

.comment__user {
    display: inline-block;
    margin: 0 10px 1rem 0;
}

.comment__time {
    opacity: .5;
}

.comment__text {
    margin: 0 0 1rem;
}

.actions {
    grid-column: 2/4;
}

.actions__number {
    font-weight: 700;
}

.actions__btn {
    border: none;
    padding: 5px;
    background: transparent;
}

.actions__btn:hover {
    background: #ccc;
}