.sp {
  display: none;
}
@media (max-width: 480px) {
  .sp {
    display: block;
  }
  .pc {
    display: none;
  }
}

#wrapper {
  margin: 0;
  padding: 0;
  text-align: center;
}

#contents {
  width: 1100px;
  margin: 0 auto;
}

#nav {
  width: 1100px;
  margin: 10px auto 20px auto;
}

h2 {
  background: #774d7d;
  padding: 10px 0.5em;
  text-align: left;
  color: #ffffff;
  font-size: 30px;
}


#main {
  width: 540px;
  height: 567px;
  background-color: #eeeeee;
  float: left;
}

#box1 {
  width: 93%;
  margin: 30px auto 0 auto;
  text-align: left;
}

#box2 {
  width: 90%;
  margin: 0 auto;
  font-size: 16px;
  text-align: left;
}
#box2 ul {
  padding: 0;
}
#box2 a {
  color: #774d7d;
}

p {
  font-size: 20px;
  margin: 0;
  position: relative;
}

.login,
.pass {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}
li {
  margin: 0px 0 10px 0;
}

.pan {
  font-size: 20px;
  text-align: left;
  margin-bottom: 20px;
}

#side {
  width: 540px;
  height: 567px;
  background-color: #eeeeee;
  float: right;
}
#side .pan {
  margin: 0 auto;
  width: 90%;
}
span {
  display: block;
  width: 200px;
  height: 50px;
  margin: 5px auto;
}

h3 {
  margin: 0 auto 20px;
  padding: 1em;
  background-color: #cccccc;
  color: #ffffff;
  text-align: center;
  font-size: 20px;
  font-weight: normal;
}

input[type="text"], input[type="password"], textarea, select {
  border: 1px solid #D5D5D5;
  color: #666666;
  padding: 5px 5px 5px 10px;
  width: 355px;
  height: 53px;
  /* position: absolute; */
  top: -9px;
  font-size: 20px
}

input[type="submit"],
.register_btn,
.tirashi a {
  background-color: #774d7d;
  padding: 5px 20px;
  border: none;
  color: #FFFFFF;
  font-weight: bold; 
  cursor: pointer;
  font-size: 20px;
  width: 350px;
  height: 70px;
  margin-top: 30px;
}
.register_btn,
.tirashi a {
  display: block;
  box-sizing: border-box;
  line-height: 60px;
  margin: 0 auto 20px;
  text-decoration: none;
}
.tirashi a {
  text-align: center;
  margin-top: 20px;
}
.note {
  color: #ff0000;
  font-size: 16px;
  margin-bottom: 30px;
}


@media screen and (max-width: 480px) {
  form {
    margin-bottom: 0;
  }
  h2 {
    font-size: 20px;
    margin-bottom: 0;
    text-align: center;
  }
  h3 {
    font-size: 16px;
    margin-bottom: 10px;
    padding: 10px;
  }
  #nav {
    width:100%;
    margin:10px auto 0;
    padding:0;
  }
  #contents{
    width:100%;
    margin:0 auto;
    padding:0;
  }

  #main{
    width:100%;
    height: auto;
    margin: 10px auto;
    text-align: left;
  }

  #box1 {
    width: 95%;
    margin: 10px auto;
    text-align: left;
  }

  #box2 {
    width: auto;
    margin: 10px;
    text-align: left;
    font-size: 13px;
  }

  #side{
    width:100%;
    height: auto;
    margin: 10px auto 0;
    text-align: center;
    float: left;
  }
  #side .pan {
    margin: 0 10px 10px;
    width: 100%;
  }

  input[type="text"] {
    width:150px;
  }

  input[type="password"] {
    width:150px;
  }
  .pan {
    font-size: 13px;
    margin-bottom: 10px;
  }
  p {
    font-size: 13px;
  }
  input[type="text"], input[type="password"], textarea, select {
    font-size: 13px;
    height: 35px;
    width: 100%;
  }
  .note {
    font-size: 13px;
    margin: 10px 0 15px;
  }
  input[type="submit"],
  .register_btn,
  .tirashi a {
    font-size: 16px;
    height: 60px;
    width: 340px;
    margin-top: 10px;
  }
  .register_btn,
  .tirashi a {
    margin-bottom: 10px;
    line-height: 50px;
  }
  .tirashi a {
    margin-top: 10px;
  }
  .input_space {
    width: 100%;
  }
}


/*clearfix
---------------------------------------------------*/
.clearfix {
  zoom:1;/*for IE 5.5-7*/
}

.clearfix:after { /*for modern browser*/
  content: ".";
  display: block;
  clear: both;
  height: 0px;
  visibility: hidden;
  font-size: 0;
}