section.wrap {
  width: 100%;
  position: relative;
  padding: 22%;
  background: white;
  background: rgba(240, 240, 240, 0.5);
  background: url(../img/login.jpg) no-repeat center 70%;
  background-size: cover; /* background:#fafafa;*/
  overflow: hidden;
  margin-top: 100px;
}

section.wrap article.login_box {
  width: 22%;
  position: absolute;
  background: rgba(15, 15, 15, 1);
  left: 50%;
  top: 50%;
  padding: 1%;
  transform: translate(-50%, -50%);
  background: transparent;
  color: white;
  font-size: 1.2em;
}

article.login_box > h1 {
  text-align: center;
  font-size: 3em;
  margin-bottom: 2%;
}

article.login_box form {
  width: 100%;
  padding: 1%;
  background: transparent;
}

article.login_box * {
  color: black;
  outline: none;
}

article.login_box input {
  background: transparent;
  width: 100%;
  font-size: 1.5em;
  padding: 3.5% 0;
  padding-left: 1%;
  margin-bottom: 3%;
  border: 1px solid black;
  padding-left: 3%;
}
/*article.login_box input:nth-child(2){background:transparent; width:100%; font-size:1.5em; padding:2% 0; padding-left:1%; margin-bottom:3%; border:1px solid black;}*/

::placeholder {
  font-size: 0.8em;
  color: rgba(0, 0, 0, 0.7);
}

article.login_box input:nth-child(3):hover {
  background: #222;
  color: #fff;
}

article.login_box div.a_box {
  width: 100%;
  margin: 0 auto;
  padding: 3% 0%;
  overflow: hidden;
}

article.login_box div.a_box > a {
  display: block;
  float: left;
  width: 33.333%;
  text-align: center;
  font-size: 1.2em;
}
article.login_box div.a_box > a:hover {
  font-weight: bold;
}
article.login_box form input[type="submit"] {
  cursor: pointer;
  color: black;
  font-size: 1.3em;
}
article.login_box div.sns_login {
  width: 100%;
  margin: 0 auto;
}
article.login_box div.sns_login a {
  display: block;
  width: 47.5%;
  float: left;
  text-align: center;
}
article.login_box div.sns_login a img {
  width: 90%;
  margin-bottom: 3%;
}
article.login_box div.sns_login a:nth-child(1) {
  margin-right: 5%;
}

article.login_box div.sns_login a p {
  text-align: center;
  font-size: 1.1em;
}
article.login_box div.sns_login a:hover {
  font-weight: bold;
}