@media (max-width: 500px) {
  main div.senjin {
    width: calc(50% - 10px);
    margin: 5px;
  }
}

main {
  width: 964px;
  margin: auto;
  padding: 10px 30px 10px 30px;
  background-color: #ffffff;
  display: flex;
  flex-wrap: wrap;
}

main div.senjin {
  width: calc(33.3% - 12px);
  margin: 5px;
  background-color: #ffffff;
  text-align:center;
  padding-top: 20px;
  border-style:solid;
  border-width:1px;
  border-color:#999999;
  border-radius: 0em;
}

main div.senjin img {
  width: calc(50% - 10px);
  margin: 5px;
  border-radius: 0.5em;
}


main div.senjin2 {
  width: calc(100%);
  margin: 5px;
  background-color: #ffffff;
  text-align:left;
  padding: 20px;
  border-style:solid;
  border-width:0px;
  border-color:#999999;
  border-radius: 0em;
}

main div.senjin2 img {
  width: calc(30%);
  margin: 20px 0px 20px 20px;
  border-radius: 0.5em;
  float: right;
}

body{
  margin: 0px;
  background-color: #ffffff;
}


#header{
  width: 954px;
  text-align:center;
  font-size:1.1em;
  margin: auto;
  color:#993300;
  font-weight:600;
  background-color:#ffffff;
  border-style:solid;
  border-width:0px 0px;
  border-color:#badcdc;
  padding: 20px 35px 0px 35px;
}
h1{
  width: px;
  text-align:left;
  font-size:1.5em;
  margin: auto;
  color:#ffffff;
  background-color:#8f513d;
  border-style:solid;
  border-width:0px 0px;
  border-color:#badcdc;
  padding: 0.5em 0.5em calc(0.5em + 19px) 0.5em;
  background-image: url("images/border.png");
  background-repeat: repeat-x;
  background-position: left bottom
}
#footer{
  width: 100%;
  text-align:center;
  font-size:1.0em;
  margin: auto;
  color:#ffffff;
  font-weight:600;
  background-color:#8f513d;
  border-style:solid;
  border-width:0px 0px;
  border-color:#badcdc;
  padding: 19px 35px 10px 35px;
  background-image: url("images/border.png");
  background-repeat: repeat-x;
  background-position: left top
}

.footer-text {
  font-size:0.9em;
  display: inline-block;
  padding: 1em 0em;
  text-decoration: none;
}

.button {
  display: inline-block;
  padding: 0.3em 1em;
  text-decoration: none;
  color: #FFF;
  border: solid 2px #FFF;
  border-radius: 3px;
  transition: .4s;
}

.button:hover {
  background: #330000;
  color: white;
}