* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.bht-body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f0;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

.bht-cnt {
    margin: 0 auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.bht-ttl {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #2c3e50;
    text-align: center;
}

.bht-subttl {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #34495e;
    text-align: center;
    padding-left: 35vw;
}

.bht-txt {
    font-size: 1.2em;
    line-height: 1.6;
    color: #555;
    text-align: center;
}

.bht-sgn-cnt {
    text-align: center;
    margin-bottom: 20px;
    width: auto;
    height: auto;
}

.bht-img-1 {
    width: 40vw;
    height: 80vh;
    border-radius: 8px;
}

.bht-img-2 {
    width: 40vw;
    height: 80vh;
    border-radius: 8px;
}

.bht-img-3 {
    width: 40vw;
    height: 80vh;
    border-radius: 8px;
}

.bht-img-4 {
    width: 40vw;
    height: 80vh;
    border-radius: 8px;
}

.bht-img-5 {
    width: 40vw;
    height: 80vh;
    border-radius: 8px;
}