.container {
    width: 80%;
    margin-left: 10%;
    display: flex;
    flex-direction: column;
    height: 100vh;

}

header {
    background-color: slateblue;
    font-size: 200%;
    text-align: center;
    font-weight: bold;


}

nav {
    background-color: midnightblue;
    padding: 5px;
    top: 40px;
    color: white;
    display: grid;
    column-gap: -100px;
    grid-template-columns: 1fr 15fr;
}

main {
    background-color: rgba(111, 225, 246, 0.7);
    border: 4px solid darkcyan;
    overflow-y: scroll;
    flex: 4;
    display: flex;

}

footer {
    background-color: darkblue;
    text-align: right;
    color: white;


}

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    background-image: url("background.jpg");
    margin: 0px;

}

.content {
    flex: 4;


}

aside {
    background-color: darkcyan;
    overflow: hidden;
    transition: 1s;


}

.open {
    flex: 1;
    overflow: hidden;
}

.close {
    flex: 0;
    overflow: visible;
    padding: 1px;
}

.rightaside {
    flex: 1;
    overflow: hidden;
}

#cs_dialog {
    position: absolute;
    background-color: white;
    width: 400px;
    height: 200px;
    left: Calc(50vw - 200px);
    top: -400px;
    border: 4px black solid;
    border-radius: 3px;
    z-index: 2;

}

#hd_dialog {
    display: flex;
    background-color: grey;
    justify-content: space-between;


}

#cn_dialog {
    height: 152px;
    padding: 5px;
}

#ft_dialog {
    background-color: grey;

}

#overlay {
    position: fixed;
    background-color: rgba(0, 0, 0, 0.3);
    display: none;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 1;
}

#Login_button {
    background-color: black;
    color: white;
    width: 40px;
    padding: 5px;
    border: white 1px solid;

}

#dialog_x {
    text-align: center;
}

#Contact_button {
    background-color: black;
    color: white;
    width: 60px;
    padding: 5px;
    border: white 1px solid;
    float: left;

}

#form_dialog {
    display: none;
    grid-template-columns: 1fr 15fr;
}

#contact_dialog {
    display: none;
    
}