body {    
    background-color: #08161e;
    font-family: 'Courier New', Courier, monospace;
    color: #ffffff;
}
.nav_bar {
    font-size: 30px;
    font-weight: bold;
}
.container {
    margin-top: 30px;
}

.nav_text {
    display: flex;
    align-items: center;
    justify-content: right;
}


.title_photo {
    text-align: center;
}

.photo {
    background: url(../image/photo1.jpg) no-repeat center center;
    background-size: 100%;
    width: 380px;
    height: 550px;
}

.nav_logo {
    background: url(../image/logo.png) no-repeat center center;
    background-size: 100%;
    width: 50px;
    height: 50px;
}

.button_js {
    text-align: center;
}

#myButton {
    border: none;
    border-radius: 15px;
    width: 150px;
    height: 50px;
    background-color: brown;
    color: #ffffff;
    font-weight: bold;
}

#demo img {
    margin-top: 20px;
    width: 25%;
}

.index {
    text-align: center;
}

.btn__reg {
    border: none;
    border-radius: 15px;
    width: 150px;
    height: 50px;
    background-color: brown;
    color: #ffffff;
    font-weight: bold;
}

.hello {
    text-align: center;
}

.btn_red {
    border: none;
    border-radius: 15px;
    width: 150px;
    height: 50px;
    background-color: brown;
    color: #ffffff;
    font-weight: bold;
}

.post {
    display: flex;
    justify-content: center;
    align-items: center;
}

#zagolovok {
    width: 30%;
}