.center {text-align:center;}

body

p {font-family: arial;
    font-size: 16px;
    color: #16160e;
    line-height: 1.6;
    margin-bottom: 1.em;
}

/*--目次カスタマイズ--*/
.content .outline{
	border-color:#2e8b57;/*一番外の枠*/
}
.content .outline__switch::before{
	border-color:#2e8b57;/*閉じるの枠*/
}
.content .outline__number{
	background-color:#228b22;/*見出背景色*/
	color:#ffffff;/*見出数字の色*/
 
}
.content .outline__link{
		border-bottom:1px solid #228b22;/*見出し下線色*/
}
/*--ここまで--*/

/*--------------------------------
PREV NEXT
---------------------------------*/
#prev_next{
width:100%;
margin: 36px 0 24px;
padding:0;
display: table;
}
#prev_next  #prev, #prev_next  #next{
width: 50%;
padding:30px 10px 10px;
border-top:#ccc 1px solid;
border-bottom:#ccc 1px solid;
display: table-cell;
position:relative;
text-decoration:none;
}
#prev_next #prev p, #prev_next #next p{
font-size:90%;
line-height:1.5;
}
#prev_next #prev:hover, #prev_next #next:hover{
background-color: rgba(238,238,238,0.7);
}
#prev_next #prev{
border-right:#ccc 1px solid;
}
#prev_next #prev_title, #prev_next #next_title{
font-size:90%;
top:-1em;
position:absolute; 
border: 1px #ccc solid;
background:#adff2f; 
text-align: center;
padding:3px;
color:#666;
}
#prev_next #next_title{
right:10px;
}
#prev_next #prev img, #prev_next #next img{
margin:0 auto;
}
#prev_next #prev_no, #prev_next #next_no{
width: 50%;
height:140px;
padding:0 10px;
display: table-cell;
}
#prev_next #prev_no{
border-right:#ccc 1px solid;
}
#prev_next_home{
margin:0 auto;
background-color: #39f;
border: solid 9px #adff2f;
width: 100px;
height:100px;
-moz-border-radius: 100px;
-webkit-border-radius: 100px;
border-radius: 100px;
box-shadow: 0 0 0 3px #39f;
-webkit-box-shadow: 0 0 0 3px #39f;
-moz-box-shadow: 0 0 0 3px #39f;
text-align:center;	
}
#prev_next_home:hover{
background-color: rgba(0,0,255,0.7);
}
#prev_next_home i{
color:#adff2f;
margin:10px auto ;
font-size:60px;
}
/*-- ここまで --*/
/*media Queries タブレットサイズ
----------------------------------------------------*/
@media only screen and (max-width: 780px) {
}
/*media Queries タブレットサイズ
----------------------------------------------------*/
@media only screen and (min-width: 380px) {
}
/*media Queries PCサイズ
----------------------------------------------------*/
@media only screen and (min-width: 780px) {
	}
/*-- ここから --*/
/*--------------------------------------
768px PREV NEXT
--------------------------------------*/
#prev_next #prev, #prev_next #prev::before, #prev_next #prev::after,
#prev_next #next, #prev_next #next::before, #prev_next #next::after {	
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-transition: all .3s;
transition: all .3s;
}
#prev_next #prev_title, #prev_next #next_title{
padding:3px 10px;
}
#prev_next #next_title{
right:10px;
}
#prev_next #prev img{
float:left;
margin-right:10px
}
#prev_next #next img{
float:right;
margin-left: 10px;
}
/*-- ここまで --*/	

.page_top {
position:fixed;
bottom:10px;
right:10px;
width: 50px;
height: 50px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
color:#fff;
font-size:20px;
text-decoration:none;
background:#ff4500;
border: 3px solid #ffffff;
text-align: center;
line-height: 50px;
}