body {
    margin: 0;
    padding: 0;
    background-color: #130f40;
    background-position: center;
    font-family: sans-serif;
    color: #2c3e50;
}

.main-box {
    width: 320px;
    height: 420px;
    background-color: #ecf0f1;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
    box-sizing: border-box;
    padding: 70px 30px;
    border: 5px solid #34495e;
    border-radius: 10px;
    box-shadow: 0px 0px 5px #000;
}

.avatar {
    width: 100px;
    height: 100px;
    position: absolute;
    top: -50px;
    left: calc(50% - 50px);
    border: 5px solid #34495e;
    border-radius: 50%;
    box-shadow: 0px 0px 5px #000;
}

h1 {
    margin: 0;
    padding: 20px 0 20px 0;
    text-align: center;
    font-size: 22px;
}

.main-box label {
    margin: 0;
    padding: 0;
    font-weight: bold;
}

.main-box input {
    width: 100%;
    margin-bottom: 20px;
}

.main-box input[type="text"], input[type="password"] {
    border: none;
    border-bottom: 1px solid #2c3e50;
    outline: none;
    background: none;
    color: #333333;
    font-size: 16px;
    margin-top: 15px;
}

.main-box input[type="submit"] {
    border: none;
    outline: none;
    height: 40px;
    background: #2c3e50;
    color: #bdc3c7;
    font-size: 18px;
    border-radius: 20px;
    box-shadow: 0px 0px 5px #000;
}

.main-box input[type="submit"]:hover {
    cursor: pointer;
    background: #130f40;
    color: #ecf0f1;
    transition: .5s;
}

.main-box a {
    text-decoration: none;
    font-size: 12px;
    line-height: 20px;
    color: #2c3e50;
}

.main-box a:hover {
    text-decoration: underline;
}