html {
    background: #111;
margin:0px;
padding:0px;
width:100%;
        background-image: linear-gradient(to right, #39853a, #8cbc3d);
}
/* Container */
.container{
    width:100%;
    margin:auto auto;

}

/* Login */
#div_login{
    border-radius: 6px;
    width: 99%;
    box-shadow: 0px 2px 2px 0px  gray;
    margin: 0 auto;
    padding: 20px;
    background: #3ab44a;
}

#div_login h1{
    margin-top: 0px;
    border-radius: 6px;
    font-weight: bold;
    padding: 10px;
    font-size:50px;
    background-color: #176643;
    color: white;
    font-family: sans-serif;
}

#div_login div{
    clear: both;
    margin-top: 10px;
    padding: 5px;
    
}

#div_login .textbox{
    width: 100%;
    padding: 7px;
    border-radius: 6px;
    font-size:50px
    
}

#div_login input[type=submit]{
    padding: 7px;
    width: 100%;
    background-color:#176643;
    border: 0px;
    color: white;
    border-radius: 6px;
    font-size:50px
}

.grid-container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr;
            background-image: linear-gradient(to right, #39853a, #8cbc3d);
    width: 100%;
        height:100%;
  gap: 0px 0px;
  grid-template-areas:
    "spacer_left Spacer_top Spacer_top Spacer_right"
    "spacer_left Center Center Spacer_right"
    "spacer_left Center Center Spacer_right"
    "spacer_left spacer_btm spacer_btm Spacer_right";
}
.spacer_left { grid-area: spacer_left;width:28%;  }
.Spacer_right { grid-area: Spacer_right;width:28%; }
.spacer_btm { grid-area: spacer_btm; }
.Spacer_top { grid-area: Spacer_top; }
.Center { grid-area: Center;width:auto;text-align:center;vertical-align:center }




/* media */
@media screen and (max-width:720px){
    .container{
        width: 100%;

    }
    #div_login{
        width: 99%;

    }
}