body {
    background-color: aquamarine;
}

 #box {
    border: 1px solid black;
    background-color: aqua;
}

#box div {
    border-bottom: 1px solid black;
}

#error {
    padding: 30px;
    border: 10px solid #c94c4c;
    background-color:#eca1a6;
}

 #loading {
    text-align: center;
    background-color: red;
    padding: 50px;
    animation: loadingScreen 2s alternate infinite;
 }

 @keyframes loadingScreen {
     0% {
         transform: scale(1);
     }
     100% {
         transform: scale(1.5);
     }
 }