body {font-family: SourceHanSansJP-Light, YuGothic, "Yu Gothic", 游ゴシック体, 游ゴシック, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", メイリオ, Meiryo, "ＭＳ Ｐゴシック", Osaka, "MS PGothic", Arial, Helvetica, Verdana, sans-serif;font-size: 16px;line-height: 30px;}

.first-textarea .widget {
    background-color: #FFFFFF;
}
.rsrc-main .rsrc-post-content{
      background-color: #FFFFFF;
}
    
h3#danraku3{
     border-top:1px dotted #ccc;  
     border-right:1px dotted #ccc;  
     border-left:7px double #ff7f50;  
     border-bottom:1px dotted #ccc;  
     padding:.1em .9em; 
}

.double-rectangle {
  text-align: center;
  overflow: hidden;
  margin-bottom: 30px;
}
.left-rectangle {
  float: left;
  margin-left: 20px;/*左に20pxの余白*/
}
.right-rectangle {
  float: right;
  margin-right: 20px;/*右に20pxの余白*/
}