body, p, a, img, div, span {
  margin: 0;
}

*, ::after, ::before {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-flow: column;
  min-height: 100vh;
  margin: 0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
  font-weight: 400;
  color: #212529;
  text-align: left;
}

.footer {
  line-height: 2.0;
  text-align: center;
}

.main {
  flex: 1;
  margin: 1.0rem auto;
  width: 100%;
  max-width: 960px;
  padding-top: 4.0rem;
  min-height: calc(100vh - 8.0rem);
}

img {
  vertical-align: middle;
  border-style: none;
  margin: 1.0rem;
}

@media screen and (max-width: 640px) {/* 640px以下*/
  img.picmini {
    max-width: 70px;
    max-height: 70px;
  }
}

.center {
  text-align: center;
}

.mb0 {margin-bottom: 0px!important;}

.bold{font-weight:bold;}
.width100,.w100{width:100%;}

.p14{font-size: 1.4rem;}
.p18{font-size: 1.8rem;}
.p20{font-size: 2.0rem;}
html{
  font-size: 62.5%;/*10px*/
}
body{
  font-size: 1.6rem;/* 16px*/
  line-height: 1.2;
}

@media screen and (max-width: 640px) {/* 640px以下*/
  body{
    line-height: 1.6;
  }
  body .sm{
    line-height: 1.0;
  }
}

p {
  font-family: sans-serif;
  font-size: 1.6rem;/* 16px*/
  line-height: 1.5;
  margin-bottom: 0.9rem;
}
@media screen and (max-width: 640px) {/* 640px以下*/
  p {
    font-size: 1.4rem;/* 14px*/
    line-height: 1.4;
    margin-bottom: 0.8rem;
  }
}

.relative {
  position: relative;
}
.absolute {
  position: absolute;
}