* {
    margin: auto;
    padding: auto;
}

body {
    font-size: 100%;
    background: rgba(173, 172, 172, 0.493);
}

.header {
    width: 30%;
    margin-top: 5%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
    color: white;
    background: #5F9EA0;
    text-align: center;
    border: 1px solid #B0C4DE;
    border-bottom: none;
    border-radius: 10px 10px 0px 0px;
    padding: 2%;
}

form,
.content {
    width: 30%;
    margin-top: 0%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
    padding: 2%;
    border: 1px solid #B0C4DE;
    background: white;
    border-radius: 0px 0px 10px 10px;
}

.input-group {
    margin-top: 1%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
}

.input-group label {
    display: block;
    text-align: left;
    margin-top: 2%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
}

.input-group input {
    height: 30px;
    width: 95%;
    padding: 2% 2%;
    font-size: 16px;
    border-radius: 5px;
    border: 1px solid gray;
}

.btn {
    margin-top: 5%;
    margin-left: none;
    margin-right: none;
    height: 50px;
    width: 49%;
    padding: 2% 2%;
    font-size: 16px;
    border-radius: 5px;
    color: white;
    background: #5F9EA0;
    border: none;
}