body {
    background-image: url("../image/login_bg.jpeg");
    background-size: 100%;
    background-repeat: no-repeat;
}
 
#login_frame {
    width: 400px;
    height: 270px;
    padding: 13px;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -200px;
    margin-top: -200px;
    background-color: rgba(197, 211, 211, 0.6);
    border-radius: 15px;
    text-align: center;
}
 
form p > * {
    display: inline-block;
    vertical-align: middle;
}
 
#image_logo {
    margin-top: 22px;
}
 
.label_input {
    font-size: 14px;
    font-family:  arial,'Times New Roman', Times,  sans-serif;
 
    width: 65px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    color: white;
    background-color: #5bc1e0;
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
}
 
.text_field {
    width: 270px;
    height: 28px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    border: 0;
}

#login_control {
    vertical-align: middle;
}
#btn_login {
    font-size: 14px;
    font-family:  arial,'Times New Roman', Times,  sans-serif;
    width: 120px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    color: white;
    background-color: #8973e9;
    border-radius: 6px;
    border: none;
}