#game-container {
    margin: 0 auto;
    max-width: 60%;
    padding-top: 60px;
   justify-content: center;
text-align:center;
}

#game-container h3{
text-align: center;
padding-bottom:10px;
border-bottom: 1px solid #ddd;
}

#target-number {
    font-size: 2rem;
    margin-bottom: 1rem;
}

#numbers {
    display: flex;
    margin-top: 1rem;
   justify-content: center;
}

#numbers span {
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    background-color: #eee;
    border: 1px solid #ccc;
    cursor: pointer;
  
}

#expression {
    font-size: 1.5rem;
    margin-top: 1rem;
}

#operations button {
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    background-color: #eee;
    border: 1px solid #ccc;
    cursor: pointer;
    border-radius: 0px;
    color: #000;
}

#timer {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

#input-field {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.hidden {
    display: none;
}

#numbers .clicked {
  background-color: #fd3b3b;
  color: #ffffff;
  font-weight: bold;
  border: 2px solid #000;
}
.messagebox{
	background: #fd3b3b;
	color: #ffffff;
    font-weight: bold;
	margin-bottom:8px;
}
.game_instruction li{
	text-align:left;
        color:red;
}

.game_instruction{
  border-top:1px solid #ccc;
}