main.css

.login-form{
  height: 100vh;
  background: url(https://cdn.abo.media/upload/article/9t88mxmbmbmp1svnkuck.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  margin: auto;
}
.span{
  font-size: 25px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
}
.span .text{
  display: block;
  text-align: center;
}
form{
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
}
input:required:invalid{
  border-color: red;
}
/* input:required:valid{
  border-color: red;
} */

.username{
  position: relative;
}
.username::after{
  content: "\2716";
  position: absolute;
  top: 40px;
  right: -274px;
  font-size: 15px;
  font-weight: bold;
  color: red;
}
.password{
  position: relative;
}
.password::after{
  display: block;
  content: "\2716";
  position: absolute;
  top: 40px;
  right: -280px;
  font-size: 15px;
  font-weight: bold;
  color: red ;
}
.button{
  color: #FFF;
  background-color: #2eb2c9;
  border: none;
  border-radius: 5px;
}
.button:hover{
  color: #FFF;
  transition: .3s;
}
.button:hover .mysave{
  background-color: #2693a6;
}
form a{
  color: #2eb2c9;
  text-decoration: none;
}
form a:hover{
  color: #2693a6;
}


/* Login form */

nav{
  background-color: #2eb2c9;
}
.fs{
  font-size: 14px;
}
.tap{
  color: #FFF;
  background-color: #2eb2c9;
}
.tap:hover{
  color: #FFF;
}
.card-link{
  color: #2eb2c9;
  text-decoration: none;
}
.card-link:hover{
  color: #2eb2c9;
  text-decoration: underline;
}

/* Institute news */

.mylink{
  color: #2eb2c9;
}
.mylink:hover{
  color: #218191;
}
.mytr{
  color: #FFF;
  background-color: rgba(46, 178, 201, .45);
  border-color: #2eb2c9;
}
.myth{
  border-color: #2eb2c9;
}
td{
  position: relative;
}
.block{
  position: absolute;
  top: 3px;
  right: 3px;
  font-size: 8px;
  color: #FFF;
  background-color: #2eb2c9;
  padding: 1px 4px;
  border-radius: 5px;
}

/* Schedule */

.myflex_0{
  margin-left: 35px;
}
.mya{
  color: #C8C8C8;
  text-decoration: none;
}
.item-1{
  width: 11.5%;
}
.item-2{
  width: 22.7%;
}
.item-2 label:hover{
  color: blue;
}
/* Modal */
.mybutton{
  width: 10px;
  height: 10px;
}
.file{
  display: none;
  opacity: 0;
  width: 0;
  height: 0;
}
.test-label{
  position: relative;
}
.test-label::after{
  content: "Browse";
  display: block;
  position: absolute;
  top: -1px;
  right: -1px;
  width: 80px;
  height: 38px;
  background-color: rgba(233, 236, 239, 0.5);
  padding-top: 5px;
  padding-left: 15px;
  padding-right: 15px;
  border: 1px solid #ced4da;
  border-radius:0px .25rem .25rem 0px;
}
.test-label:hover::after{
  background-color: rgba(233, 236, 239, 1);
}
.mysave{
  transition: .3s;
}
.mysave:hover{
  background-color: #2693a6;
}
/* Modal */

.border-1{
  border-style: solid;
  border-color: #C8C8C8;
}
#lesson{
  width: 89%;
}
.myborder{
  border-top-width: 1px;
  border-top-color: #2eb2c9;
}
.c-1{
  width: 17%;
}
.c-2{
  width: 5%;
}
.c-4{
  width: 10%;
}
.c-5{
  width: 10%;
}
.myflex{
  margin-left: -20px;
}
.test{
  position: relative;
}
.radio-1{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-1{
  cursor: pointer;
}
.radio-label-1::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid green;
  border-radius: 50%;
  z-index: 1;
}
.radio-label-1::after{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: green;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-1:checked + .radio-label-1::after{
  opacity: 1;
}
.radio-2{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-2{
  padding: 0px 30px;
  cursor: pointer;
}
.radio-label-2::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 33px;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid yellow;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-2::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 33px;
  background-color: yellow;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-2:checked + .radio-label-2::after{
  opacity: 1;
}
.radio-3{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-3{
  cursor: pointer;
}
.radio-label-3::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 1;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid red;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-3::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 1;
  background-color: red;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-3:checked + .radio-label-3::after{
  opacity: 1;
}
.radio-4{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-4{
  font-size: 1rem;
  color: #444;
  cursor: pointer;
}
.radio-label-4::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid green;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-4::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 0;
  background-color: green;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-4:checked + .radio-label-4::after{
  opacity: 1;
}
.radio-5{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-5{
  padding: 0px 30px;
  cursor: pointer;
}
.radio-label-5::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 33px;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid yellow;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-5::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 33px;
  background-color: yellow;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-5:checked + .radio-label-5::after{
  opacity: 1;
}
.radio-6{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-6{
  cursor: pointer;
}
.radio-label-6::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 1;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid red;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-6::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 1;
  background-color: red;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-6:checked + .radio-label-6::after{
  opacity: 1;
}
.radio-7{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-7{
  cursor: pointer;
}
.radio-label-7::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid green;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-7::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 0;
  background-color: green;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-7:checked + .radio-label-7::after{
  opacity: 1;
}
.radio-8{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-8{
  padding: 0px 30px;
  cursor: pointer;
}
.radio-label-8::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 33px;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid yellow;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-8::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 33px;
  background-color: yellow;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-8:checked + .radio-label-8::after{
  opacity: 1;
}
.radio-9{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-9{
  cursor: pointer;
}
.radio-label-9::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 1;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid red;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-9::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 1;
  background-color: red;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-9:checked + .radio-label-9::after{
  opacity: 1;
}
.radio-10{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-10{
  cursor: pointer;
}
.radio-label-10::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid green;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-10::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 0;
  background-color: green;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-10:checked + .radio-label-10::after{
  opacity: 1;
}
.radio-11{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-11{
  padding: 0px 30px;
  cursor: pointer;
}
.radio-label-11::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 33px;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid yellow;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-11::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 33px;
  background-color: yellow;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-11:checked + .radio-label-11::after{
  opacity: 1;
}
.radio-12{
  width: 0;
  height: 0;
  opacity: 0;
  visibility: hidden;
}
.radio-label-12{
  cursor: pointer;
}
.radio-label-12::before{
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 1;
  width: 18px;
  height: 18px;
  background-color: #FFF;
  border: 1px solid red;
  border-radius: 50%;
  z-index: 2;
}
.radio-label-12::after{
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 3px;
  left: 1;
  background-color: red;
  border-radius: 50%;
  padding: 2px;
  background-clip: content-box;
  opacity: 0;
  z-index: 2;
  transition: opacity .1s linear;
}
.radio-12:checked + .radio-label-12::after{
  opacity: 1;
}
.select{
  position: relative;
}
.select::after{
  content: "";
  display: block;
  position: absolute;
  top: 40%;
  right: 0.5rem;
  z-index: 1;
  border-style: solid;
  border-width: 8px 4px 0 4px;
  border-color:	#404040 transparent transparent transparent;
}
.select select{
  background: none;
}

/* Attendance */

.item-3{
  width: 15%;
  margin-right: 3%;
}
.myimg{
  color: rgba(46, 178, 201, 0.8);
}

/* Homework */