body {
    margin: 0;
    padding: 0;
    background: url(../img/fondocib.jpg) no-repeat center top;
    background-color: #2F7CC4;
    background-size: cover;
    font-family: sans-serif;
    height: 100vh;
}

.login-box
{
    width: 320px;
    height: 350px;
    background: #04225B;
    color: #fff;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%,-50%); 
    box-sizing: border-box;
    padding: 70px 30px;
}   

.login-box .avatar
{
    width: 130px;
    height: 130px;
    position: absolute;
    top: -65px;
    left: calc(50% - 65px);

}

.login-box h1{
    margin: 0;
    padding: 0 0 20px;
    text-align: center;
    font-size: 22px;
}
.login-box label{
    margin: 0;
    padding: 0;
    font-weight: bold;
    display: block;
}

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

}

.login-box input[type="text"]{
    border: none;
    border-bottom: 1px solid #fff;
    background: transparent; 
    outline: none;
    height: 40px;
    color: #fff;
    font-size: 16px;   
}

.login-box input[type="password"]{
    border: none;
    border-bottom: 1px solid #fff;
    background: transparent; 
    outline: none;
    height: 40px;
    color: #fff;
    font-size: 16px;   
}

.login-box input[type="submit"]{
    border: none;
    outline: none;
    height: 40px;
    background: #0E8A13;
    color: #fff;
    font-size: 18px;
    border-radius: 20px;
}

.login-box button{
    width: 100%;
    margin-bottom: 20px;
    border: none;
    outline: none;
    height: 40px;
    background: #0E8A13;
    color: #fff;
    font-size: 18px;
    border-radius: 20px;
}