body {
    max-width: 800px;
    margin-right: auto;
    margin-left: auto;
}

main {
    background-color: #faf0e6;
    padding: 3%;
    min-height: 100vh;
}

h1 {
    font-size: 1.6rem;
}

a{
  color: inherit;
  text-decoration: inherit;
  font-size: inherit;
  text-align: inherit;
}
.ic{
  position: relative;
}
.ic::before,
.ic::after{
  content: "";
  margin: auto;
  background-repeat: no-repeat;
  background-position: left top;
  background-size: 100% auto;
  position: absolute;
  pointer-events: none;
}

.button_mail{
  color: #262626;
  font-size: 1.5rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  display: block;
  transition: background .2s, color .2s;
  -webkit-transition: background .2s, color .2s;
  border: 2px solid #f3c419;
  background-color: #f3c419;
  border-radius: 5px;
  width: 260px;
  height: 50px;
  margin-right: auto;
  margin-left: auto;
}
.button_mail:hover{
  color: #262626;
  background-color: #fff;
}
.button_mail a{
  width: 100%;
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-pack: center;
  justify-content: center;
}
.fa-envelope{
  font-size: 2rem;
  padding-right: 10px;
}

address {
    font-size: 1.2rem;
    font-style: normal;
    text-align: center;
    padding: 1em 0;
}


/*PC*/
@media screen and (min-width: 768px) {
}/*END*/

/*Smartphone*/
@media screen and (max-width: 767px) {
}/*END*/