*{
    box-sizing: border-box;
}

body{
    background-color: darkblue;
    background-image: url("./../images/theme_background.jpg");
    margin-top: -16px;

    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: start;
    align-items: center;
}

.main-container{
    width: 85%;
    min-height: 300px;
    margin: 20px auto ;

    background-color: transparent;

    flex-grow: 1;

}

.main-container_display_none{
    display: none;
}

.font-awesome_color_white{
    color: #fff;
}
.font-awesome_color_yellow{
    color: yellow;
}

@media (max-width: 900px) {
    .main-container{
        width: 95%;
    }
}