body{
  width: 100%;
  height: 100%;
  background: url(../img/back_ground.png);
  background-color: #1b1c1e;
  background-size: 100% 100%;
}

button{
  color: #fff;
  font-size: 14px;
}

.btn_menu{
  left: auto;
  width: 80px;
  height: 80px;
  margin-left: 30px;
  border: 1px solid #222;
}

.saas_head{
  width: 100%;
  height: 46px;
  text-align: left;
  background: rgba(46,46,48,0.5);
}

.edu_logo{
  content: url("../img/logo@2x.png");
  margin-top: 13px;
  margin: 8px;
  margin-left: 11px;
}

#view_content{
  text-align: center;
}

.p_title{
  color: #fff;
  font-size: 26px;
  margin-bottom: 55px;
}

.p_icon{
  margin-top: 74px;
}

.p_content, .p_menu{
  color: #fff;
  font-size: 14px;
  text-align: center;
}

.icon_title{
  margin: 58px;
}

.speaker_icon{
  content: url("../img/device_speaker.png")
}
.mic_icon{
  margin-left: 95px;
  content: url("../img/device_mic.png")
}
.camera_icon{
  margin-left: 95px;
  content: url("../img/device_camera.png")
}

#device-start{
  margin-top: 134px;
  width: 266px;
  height: 40px;
}

.device_page{
  background: rgba(250, 250, 250, 0.5);;
  margin-left: auto;
  margin-right: auto;
  width: 550px;
  height: 410px;
  text-align: left;
}

.p_device_title{
  color: #fff;
  font-size: 20px;
}

#device_menu{
  display: inline;
}
.menu_space{
  display: inline-block;
  height: 4px;
  width: 102px;
  margin-bottom: 30px;
  background-color: #006eff;
  overflow: hidden;
}
#device_menu_title{
  margin-top:0px;
  margin-bottom: 37px;
}
#device_menu_title span{
  color: #fff;
  font-size: 14px;
  margin-left: 57px;
  margin-right: 70px;
  opacity: 0.5;
}
#menu_speaker{
  content: url("../img/dma_speaker.png");
}
#menu_mic{
  content: url("../img/dm_mic.png");
}
#menu_camera{
  content: url("../img/dm_camera.png");
}
#menu_result{
  content: url("../img/dm_result.png");
}

.p_tips{
  color: #313131;
  padding-top: 49px;
  margin-left: 42px;
}

.p_device{
  margin-left: 42px;
  color: #313131;
  font-size: 14px;
}

.p_device select{
  color: #fff;
  background-color: #666666;
  margin-left: 27px;
  height: 28px;
  width: 338px;
}
.p_device button{
  margin-left: 80px;
  margin-top: 16px;
  width: 108px;
  height: 30px;
}
.p_solution{
  margin-left: 110px;
  color: #313131;
  line-height: 18px;
}
.p_continue{
  margin-left: 31px;
}

#speaker-ok, #mic-ok, #camera-ok, #speaker-fail, #mic-fail, #camera-fail{
  margin-left: 91px;
  width: 108px;
  height: 30px;
}

#mic_volume{
  width: 180px;
  height: 20px;
  background: linear-gradient(to right, #7a7a7a 50%,transparent 50%);
  background-size: 15px, 20px;
  text-align: left;
  margin-left: 150px;
  overflow: hidden;
}
#mic_volume span {
  display: inline-block;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, #006eff 50%,transparent 50%);
  background-size: 15px, 20px;
  text-align: center;
  animation:load 3s ease-in;
}

#mic-test, #camera-test{
  float: right;
  margin-right: 100px;
}

#camera_view{
  margin-left: 110px;
  width: 164px;
  height: 85px;
  border: 1px solid #333;
}

#speaker_ret_img{
  content: url("../img/speaker_ok.png");
}
#mic_ret_img{
  margin-left: 94px;
  content: url("../img/mic_ok.png");
}
#camera_ret_img{
  margin-left: 94px;
  content: url("../img/camera_ok.png");
}

#mic_ret{
  margin-left: 61px;
}
#camera_ret{
  margin-left: 61px;
}
#p_ret_info{
  color: #fff;
  font-size: 14px;
}
.p_ret_button button{
  width: 266px;
  height: 40px;
  font-size: 14px;
  margin-top: 104px;
  margin-left: 35px;
  margin-right: 35px;
}

.p_result{
  width: 100%;
  text-align: center;
}
