@charset "utf-8";
/*-------------------------------------------
reset
-------------------------------------------*/
html{scroll-behavior:smooth;color:#333;background:#fff;font-family:"Meiryo","Hiragino Kaku Gothic Pro","Arial",sans-serif}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{padding:0;margin:0}table{border-spacing:0;border-collapse:collapse}fieldset,img{border:0}ol,ul{list-style:none}caption,th{text-align:left}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal}sup{vertical-align:text-top}sub{vertical-align:text-bottom}q::before{content:open-quote}q::after{content:close-quote}abbr,acronym{font-variant:normal;border:0}input,textarea{font-family:inherit;font-size:inherit;font-weight:inherit}select,button{font:inherit}input,select,textarea,button{outline:none}*,*::before,*::after{box-sizing:border-box}img{max-width:100%;height:auto}body{color:#333;-webkit-text-size-adjust:100%}legend{color:#333}a{text-decoration:none;color:inherit}

/*-------------------------------------------*/
.container{
  padding: 0;
  margin: 0 auto;
  max-width: 1180px;
}
h1{
  padding: 24px;
  margin: 0 auto;
  font-size: 20px;
}
#addhtml{
  padding: 24px;
}
#addhtml span{
  display: inline-block;
  padding: 0.25rem;
}
#addhtml span:first-child{
  width: 5rem;
}
#addhtml span:nth-child(2){
  width: 5rem;
}
/*-------------------------------------------
pagetop
-------------------------------------------*/
footer{
  height: 80px;
}
#pagetop {
  position: fixed;
  right: 40px;
  bottom: 20px;
  z-index: 5500;
  display: block;
  width: 42px;
  height:42px;
  cursor: pointer;
  background: rgba(0, 0, 0, .5);
  border: 1px solid #ffffff;
  border-radius: 4px;
  opacity: 0;
  transition: .5s;
}
#pagetop.visible {
  opacity: 1;
  pointer-events: auto;
}
@media (max-width:479px) {
  #pagetop {
    bottom: 10px;
  }
}

#pagetop span {
  position: absolute;
  top: 16px;
  left: 11px;
  display: block;
  width:18px;
  height:18px;
  content:"";
  border-top:3px solid #ffffff;
  border-right:3px solid #ffffff;
  -webkit-transform: rotate(315deg);
  transform: rotate(315deg);
}