body {
    background: #efefef;
}

.heading1 {
    width: 100%;
    font-family: 'Fira Sans', sans-serif;
    font-size: 40px;
    text-align: center;
    padding: 15px;
    position: fixed;
    color: rgba(0, 0, 0, 0.808);
    top: 0;
    background: #efefef;
}

.main {
    width: 70%;
    margin: 70px auto;
    padding: 20px 30px;
    background: #fefefe;
}

.topic {
    width: 162px;
    margin: 80px 30px;
    float: left;
    /* display: inline-block; */
    line-height: 1.3;
}

.topic ul li {
    font-family: 'Arimo', sans-serif;
    font-size: 18px;
    text-align: start;
    color: rgba(0, 0, 0, 0.705);
}

.content {
    width: 350px;
    margin: 0 auto;
    padding: 10px;
    display: inline-block;
}

.heading2 {
    font-family: 'Fira Sans', sans-serif;
    font-size: 27px;
    margin: 15px 0;
    color: rgba(0, 0, 0, 0.815);
    text-align: start;
}

.comment {
    width: 293px;
    margin: 80px 30px;
    float: right;
    /* display: inline-block; */
}

.comment p {
    font-family: 'Fira Sans', sans-serif;
    font-size: 20px;
    color: rgba(0, 0, 0, 0.705);
    line-height: 1.4;
}