body{
    height: 100vh;
    /* text-align: center; */
}

.form_login{
    /* margin-top: 200px; */
    margin-top: 15vh;
    border-radius: 20px;
    box-shadow: 0 5px 5px 2px rgba(0, 0, 0, 0.16);
    background-color: #f0f0f0;
    /* color: #2b8a3b; */
    color:black;
    width:100%;
    max-width: 1200px;

}
#form_sign_in h4 {
    font-family: 'Noto Sans Thai', sans-serif;
    font-size: 1.7em;
    color: #24255e;
    letter-spacing: 0.4px;
}
#form_sign_in label{
    font-family: 'Noto Sans Thai', sans-serif;
    margin: 10px 0px 8px 0px;
    font-weight: 900;
    font-size: 1.3em;
    margin-bottom: 0.1em;
    color: #24255e;
}

#form_sign_in .btn_forget:hover{
    text-decoration: underline;
}

/*
#form_sign_in button.btn_sign_in {
    box-shadow: 0 3px 2px 0 rgba(0, 0, 0, 0.3);
    background-image: linear-gradient(to right, #5354b8 0%, #2e2f7a 100%);
    color: white;
    display: block;
    margin: auto;
    padding: 3px 50px;
    border-radius: 20px;
    font-size: 1.1em;
    transition: 0.3s;
}
#form_sign_in button.btn_sign_in:hover{
    -ms-transform: scale(1.01);
    color: white;
    -webkit-transform: scale(11.01);
    transform: scale(1.01);
    box-shadow: 0 3px 5px .5px rgba(0, 0, 0, 0.3);
} */

#form_sign_in .btn_sign_in {
    box-shadow: 0 3px 2px 0 rgba(0, 0, 0, 0.3);
    background-image: linear-gradient(to right, #5354b8 0%, #2e2f7a 100%);
    color: white;
    display: block;
    margin: auto;
    padding: 3px 0px;
    border-radius: 20px;
    font-size: 1.1em;
    transition: 0.3s;
    width: 100%;
}
#form_sign_in .btn_sign_in:hover{
    -ms-transform: scale(1.01);
    color: white;
    -webkit-transform: scale(11.01);
    transform: scale(1.01);
    box-shadow: 0 3px 5px .5px rgba(0, 0, 0, 0.3);
}
.form-control {
    font-size: .95em;
    background-color: #f9f9f9;
    border-radius: 5px;
    border: 1px solid #e8e8e8;
    padding-left: 15px;
}
@media only screen and (max-width: 500px) {
    #form_sign_in .btn_sign_in {
        font-size: 1em;
        padding: 2px 5px;
    }
}