body {
    margin: 0;
    padding: 0;
    background: url("../imagenes/inicio.jpg") no-repeat center top;
    background-size: cover;
    font-family: sans-serif;
    height: 100vh;
}

header{                /* franja de arriba*/
    margin:0;
    padding: 0;
    background: #b60718;
    height: 48px;
}

.encabezado{                 /*logo franja arriba*/
    margin:0;
    padding: 0;
    height: 50px;
    left: 30%;
}
.login_superior{          /*Login fondo rojo*/
    width: 300px;
    height: 420px;
    background: #b60718;
    border-radius: 5%;
    top:20%;
    right: 10%;
    position: absolute;
    box-sizing: border-box;
    padding: 70px;
}

.login-box {              /*texto cuadro gris*/
    width: 250px;
    height: 350px;
    background: #e3e3e3;
    border-radius: 5%;
    top:10%;
    right: 10%;
    left: 10%;
    position: absolute;
    box-sizing: border-box;
    padding: 50px;
}
.login-box .inicio { /* logo del login*/
    width: 140px;
    height: 50px;
    border-radius: 10%;
    position: absolute;
    top: -20px;  
    left: calc(40% - 50px);
} 

.login-box h1{ /* letra titulo H1*/
    margin: 0;
    padding: 0 0 20px;
    text-align: center;
    font-size: 20px;
}

.login-box .controls{    /*cajas de texto usuario y contraseña*/
    width: 115%;
    margin-bottom: 10px;
    border: none;
    border-bottom: 2px solid white;
    font-size: 18px;
}

.login-box .buttons{  /*boton enviar*/
    width: 115%;
    margin-bottom: 10px;
    border: none;
    height: 25px;
    font-size: 16px;
    border-radius: 40px;
    background-color: black;
    color:white;
}

.login-box a{      /*texto olvido contraseña*/
    text-decoration: none;
    font-size: 12px;
    line-height: 10px;
    Color: #8B0000;
    
}