.main {
    padding: 50px;
}

.title {
    padding: 20px;
    border-radius: 10px;
    background-color: skyblue;
}

.rule {
    font-size: small;
    border-style: dashed;
    border-color: gray;
    border-width: 1px;
    padding: 20px;
    border-radius: 10px;
}

.chapter {
    position: fixed;
    width: auto;
    height: auto;
    right: 30px;
    bottom: 30px;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    text-align: right;
    color: black;
    line-height: 5px;
    padding: 20px;
    padding-top: 20px;
}

.icon {
    width: 150px;
    height: 150px;
    margin-right: 20px;
    border-radius: 20px;
}

.speech-bubble {
    position: relative;
    background-color: paleturquoise;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    padding: 10px;
    font-size: 14px;
    line-height: 1.4;
}

.speech-bubble:before {
    content: "";
    position: absolute;
    border-style: solid;
    border-width: 10px 10px 10px 0;
    border-color: transparent paleturquoise;
    display: block;
    width: 0;
    z-index: 1;
    left: -10px;
    top: 10px;
}

.speech-bubble:after {
    content: "";
    position: absolute;
    border-style: solid;
    border-width: 10px 10px 10px 0;
    border-color: transparent rgba(0, 0, 0, 0.2);
    display: block;
    width: 0;
    z-index: 0;
    left: -11px;
    top: 9px;
}