body{
    background-color: rgb(10, 10, 138);
    height: 645px;
}
header{
    width: 450px;
    height: 620px;
    /*border: solid;*/
    background-color: azure;
    margin-top: 15px;
    margin-left: 430px;
    position: absolute;
    border-radius: 30px;
}

body form{ 
    width: 319px;
    height: 171px;
    /* margin-top: 400px; */
    /* margin-left: 480px; */
    /* float: none; */
    /* position: absolute; */
    margin: -6px 66px;
}
.btn-1{
    margin-top: 20px;
    width: 300px;
    height: 30px;
    color: rgb(3, 17, 16);
    text-align: center;
    font-size: 15px;
    margin-left: 5px;
    border-radius: 6px;

}
.btn-2{
    margin-top: 5px;
    width:300px;
    height: 30px;
    font-size: 15px;
    color: rgb(0, 0, 0);
    text-align: center;
    margin-left: 5px;
    border-radius: 6px;
}
.btn-3{
    width: 98px;
    height: 29px;
    margin-top: 5px;
    color: rgb(0 0 0);
    margin: 0px 110px;
    border-radius: 6px;
    border-block-style: none;
    background: #b2e4e9;
}
.btn-3:hover{
    color: rgb(213, 213, 216);
    cursor: pointer;
    background-color: rgb(17, 26, 151);
}
header img{
    width: 230px;
    height: 230px;
    margin: 1px 110px;
}
form h1{
    text-align: center;
    color: rgb(16, 30, 95);
}
#error{
    font-size: 15;
    text-align: center;
    color: rgb(251, 255, 0);
    position: relative;
    
}