.tit-box{margin-bottom: 15px;}
.tit-box p{text-align: center;font-weight: bold;font-size: 20px;color: black;}
.txt-tit{margin-bottom: 10px;}
.txt-tit span{font-weight: bold;font-size: 18px;color: black;}
.txt-box{margin: 0 auto;width: 1100px;}
.txt-con{margin-bottom: 20px;}
.txt-con p{color: black;margin-bottom: 15px;}
.em{text-decoration: underline;}