.manga_app_header {
  display: none;
  position: relative;
  height: 180px;
  width: 100%;
  background: #f8f8f8;
  border-bottom: 2px solid #BDBDBD;
}
.manga_app_header .app_info {
  position: absolute;
  left: 220px;
  top: 30px;
}
.manga_app_header .app_info .app_name {
  font-weight: bold;
  font-size: 36px;
  line-height: 36px;
}
.manga_app_header .app_info .app_description {
  font-size: 24px;
  line-height: 24px;
  margin-top: 10px;
}
.manga_app_header .app_info .app_btn {
  color: #FFF;
  font-size: 24px;
  line-height: 24px;
  margin-top: 20px;
}
.manga_app_header .app_info .app_btn span {
  padding: 5px 16px;
  background-color: #77c138;
  border-radius: 20px;
  -moz-border-radius: 20px;
  -webkit-border-radius: 20px;
}
.manga_app_header .app_open {
  position: absolute;
  display: block;
  width: 80%;
  height: 100%;
}
.manga_app_header .app_open i {
  margin: 30px 0 0 60px;
  display: block;
  width: 120px;
  height: 120px;
  background-repeat: no-repeat;
  background-image: url('https://ssl.seiga.nicovideo.jp/res/img/manga/oauth_icon.png?201509102200');
}
.manga_app_header .app_close {
  display: block;
  float: right;
  width: 10%;
  height: 100%;
}
.manga_app_header .app_close i {
  display: inline-block;
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 20px;
  background-color: #999;
  padding: 4px;
  top: 64px;
}
.manga_app_header .app_close i:hover {
  cursor: pointer;
}
.manga_app_header .app_close i:before,
.manga_app_header .app_close i:after {
  content: "";
  display: block;
  position: absolute;
  top: 50%;
  left: 0;
  width: 32px;
  height: 1px;
  background-color: #000;
}
.manga_app_header .app_close i:before {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
.manga_app_header .app_close i:after {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
.manga_app_header .app_close i:before,
.manga_app_header .app_close i:after {
  left: 4px;
}