body, header, footer {
    width: 100%;
    margin: 0;
/*     background-color: #a3b5c2;
 */}

main {
    margin-top: 50px;
}

#logo-login {
    width: 50px;
    margin: auto;
    margin-top: 10px;
}

.login-page select.form-control.bg-dark,
.login-page select.form-control.bg-dark option {
    color: #f8f9fa;
    background-color: #343a40;
}

.principal-div {
    width: 95%;
    margin: auto;
}

.container {
    margin: auto;
    text-align: center;
    width: 100%;
    border-radius: 5px 5px 5px 5px;
    background-color: white;
}

.col-12 {
    margin-top: 15px;
    padding-bottom: 15px;
    font-weight: bold;
    border-bottom: 1px solid black;
}

.col-6 {
    margin-top: 30px;
    font-weight: bold;
    margin-bottom: 30px;
}

.registrate {
    margin-top: 10px;
}
.btn-index{
    margin-top: 30px;
}
.div-icono{
    margin-top: 100px;
    display: flex;
    justify-content: center;
}
.iconos {
    text-align: center;
    font-size: 50px;
}
.text-footer{
    margin-top: 100px;
    text-align: center;
}

@media (min-width: 801px) {
    .principal-div, header, footer {
        width: 50%;
        margin: auto;
    }

    .container {
        margin-top: 180px;
        width: 75%;
        padding: 10px;
        -webkit-box-shadow: inset 0px 6px 25px 6px rgba(178, 192, 214, 0.2);
        -moz-box-shadow: inset 0px 6px 25px 6px rgba(178, 192, 214, 0.2);
        box-shadow: inset 0px 6px 25px 6px rgba(178, 192, 214, 0.2);
    }
    .col-12{
        font-size: 20px;
    }
}