@media screen and (min-width: 280px) and (max-width: 768px) {
  .screen-student-main {
    background-image: url('../../images/screen_student_main2.jpg') ;
    background-position: left;
    background-repeat: no-repeat;
  }
  .box-register-status {
    padding:5px;
  }
}
@media screen and (min-width: 768px) and (max-width: 2560px) {
  .screen-student-main {
    background-image: url('../../images/screen_student_main1.jpg') ;
    background-position: left;
    background-repeat: no-repeat;
  }
  .box-register-status {
    padding:5px;
  }
}
@media screen and (min-width: 375px) and (max-width: 1080px) and (orientation: landscape) {
  .screen-student-main {
    background-image: url('../../images/screen_student_main3.jpg') ;
    background-position: left;
    background-repeat: no-repeat;
  }
  .box-register-status {
    padding:5px;
  }
}

.clock-body {
	background-image: url("../../images/icon/bg_clock.png");
    background-position: left;
    background-repeat: no-repeat;
	height: 75px;
    width: 100%;
	margin: 0 auto;
}
.clock-content {
    width: 90%;
    position: absolute;
}
.clock-time {
	padding: 5px 10px 5px 10px;
    margin-left: 50px;
    margin-top: -5px;
	font-size: 32px;
	text-align: center;
	font-weight: bold;
}
.clock-day {
	float: left;
    width: 100%;
    text-align: center;
}
.clock-dmy {
    float: left;
    width: 100%;
    margin-top: -8px;
    margin-left: 20px;
	text-align: center;
}