body {
    margin: 0;
    padding: 0;
    font-family: 'B Nazanin';
    background-image: url('../IMG/IMG-2026.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}


.loginbox {
    position :absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    width: 350px;
    height:320px;
    padding:80px 40px;
    box-sizing: border-box;
    background:rgba(0, 0,0,0.5);
}
.user{

    width : 100px;
    height :100px;
    overflow:hidden;
    top:calc(-100px/2);
    left:calc(50% - 50px);
    position:absolute;
     
}

h2{
    padding:0;
    margin:0;
    text-align:center;
    color:rgb(255, 216, 0);
    font-family :'B Nazanin'
     
}
.lblUsername, lblPassword {
    font-weight:bold;
    color : #fff;
    font-family:'B Nazanin';
    text-align:center;

}
.TxtUsername, .TxtPassword, .Btnsubmit {
    width: 100%;
    margin-bottom: 20px;
    font-family: 'B Nazanin';
    text-align: center;
}
.TxtUsername, .TxtPassword {

    border:none;
    border-bottom:3px solid #fff;
    outline:none;
    height:40px;
    color:#fff;
    font-size:15px;
    background-color:transparent;
}

::placeholder {

    color:rgba(255,255,255,0.5);
}
.Btnsubmit {

    border:none;
    outline:none;
    height:40px;
    font-size: 16px;
    font-family:'B Nazanin';
    color:rgba(255, 205, 9,0.92);
    background-color:rgba(0, 0,0,0.5);
    cursor:pointer;
    border-radius:20px;
    transition : 0.3s ease-in-out;

}

.Btnsubmit:hover {

    background-color:rgb(128, 128, 128);
     
}