html, body {
    margin: 10px auto;
    padding:0;
    background-color:rgba(0, 0, 0, 0.6);
    display:flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    box-shadow: 5px 5px 20px rgb(172, 172, 172);
    font-family: 'Courier New', Courier, monospace;
}
button{
    cursor: pointer;
}

h1 {
    color: rgb(255, 94, 0);
}

h2 {
    color: rgb(255, 94, 0);
}
#start {
    padding: 10px;
    width: 50%;
    background-color:white;
    font-size: 20px;
}
#start:active{
    color: black;
}

button:active{
    background-color:rgb(56, 56, 56);
}
.grid {
    display: flex;
    flex-wrap: wrap;
    width: 200px;
    height: 200px;
    border: solid 2px rgba(255, 255, 255, 0.664);
    box-shadow: 5px 5px 20px rgb(172, 172, 172);
}

.square {
    width: 20px;
    height: 20px;
}

.snake {
    background-color: rgb(255, 94, 0);
    border-radius: 50%;
}

.apple {
    background-color: greenyellow;
    border-radius: 50% ;
}
#game-over{
    display:none;
    color: rgb(255, 94, 0);
}
#btn-reveal{
    color: rgb(255, 94, 0);
    margin-top: 25px;
    text-align: center;
}

.arrow-container{
    display: none;
    justify-content:center;
    align-content: center;
    flex-flow: row wrap;
    width:100%;
}
.arrow {
    height: 30px;
    margin: 10px 20px;
    font-size: 1rem;
    text-align: center;
    background-color:white;
    border-radius: 30px;
}
#up , #down{
    flex: 0 0 60%;
    
}

#left, #right {
    flex: 0 0 40%;
}
#btn-reveal{
    cursor: pointer;
}