html {
	height: 100%;
	margin: 0px;
	padding: 0px;
	scroll-behavior: smooth;
}

body {
    height: 100%;
    max-width: 1280px;
    font-size: 16px;
    font-family: メイリオ, Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
    line-height: 170%;
    margin: 0px auto;
    padding: 20px;
    background: rgb(255, 255, 255);
}
.title_1 h1{
font-size:24px;
color:RGB(2,5,131);
border-top:2px solid #1a61c0;
border-bottom:2px solid #1a61c0;
padding:10px 20px;
margin-bottom:40px;
}

.title_2 h2{
font-size:18px;
border-left:7px solid RGB(171,171,196);
padding:4px 10px;
margin-top:40px;
background-color:RGB(230,231,233);
}
.title_2 p{
padding-left:18px;
padding-right:18px;
font-size: 15px;
}
.title_2 li p{
padding-left:0px;
}
.before_circle{
list-style:none;
}
.title_2 li{
position:relative;
}
.before_circle:before{
content:"○";
position:absolute;
top:0px;
left:-22px;
}
.title_3 h3{
font-size:18px;
font-weight:normal;
border-left:7px double RGB(171,171,196);
padding:4px 10px;
margin-top:20px;
margin-left:30px;
}
.title_3 ul{
margin-left:30px;
list-style:none;
}
.title_3 ul ul{
margin-left:0px;
list-style:circle;
margin-bottom:20px;
}
.title_3 a{
display:table;
text-decoration:none;
color:#0000EE;
padding:2px;
}
.title_2 a:visited, .title_3 a:visited{
color:#0000EE;
}
.title_2 a:hover, .title_3 a:hover{
color:red;
}
.toiawase{
border-top:1px solid #000;
margin-top:40px;
border-bottom:25px solid green;
padding-bottom:20px;
line-height:1.8;
}
.toiawase h4{
font-weight:normal;
padding-left:15px;
margin-bottom:5px;
}
.toiawase img{
float:left;
}
.toiawase p{
font-size:smaller;
padding:0;
margin:0;
}
#page_top{
  width: 50px;
  height: 50px;
  position: fixed;
  right: 0;
  bottom: 0;
  background: #344b7b;
  opacity: 0.6;
}
#page_top a{
  position: relative;
  display: block;
  width: 50px;
  height: 50px;
  text-decoration: none;
}
#page_top a::before{
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  content: '\f062';
  font-size: 25px;
  color: #fff;
  position: absolute;
  width: 25px;
  height: 25px;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  text-align: center;
}