body {
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    background-color: darkgreen;
    background-image: url("rasen.jpg");
}


h1 {
    font-size: 30px;
    text-align: left;
    color:purple;
    }
h2 {
    font-size: 20px; 
    text-align: center;
    }
p {
    font-size: 15px; 
    text-align: left;
    }
#content {
    width: 750px; 
    margin:0 auto;
    padding: 2%; 
    border: 5px solid black;
    background-color:white;
}

#counter {
    background-color: darkorange;
    border: 2px solid darkslategray;
    padding: 10px;
}

.success {color: lime;}
.error {color: red;}
.resultmessage {
    background-color: black;
    padding: 10px;
}

label,
input[type=submit],
input[type=text] { font-size: 20px;}

.number {
    font-weight: bolder;
    font-size: x-large;
    vertical-align: middle;
    padding: 0 10px;
}

/* On screens that are 992px or less, set the background color to blue */
@media screen and (max-width: 992px) {
    body {
       /* background-color: blue;*/
    }
    #content {
        width: 90%; 
    }    
  }
  
/* On screens that are 600px or less, set the background color to olive */
  @media screen and (max-width: 600px) {
    body {
      /*  background-color: olive; */
    }
    #content {
        width: 90%; 
    }    
  }