body{
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color:hsl(50, 20%, 90%);

}
#heading{
    font-size: 4rem;
    font-family: Arial,sans-serif;
    color: hsl(0, 0%, 20%);
}

#container{
    display: flex;
    flex-direction: column;
    align-items: center;
    border:black solid 5px;
    padding: 30px;
    border-radius: 50px;
    background-color: white;
}
#display{
    font-size: 4rem;
    font-family: monospace;
    font-weight: bold;
    color: hsl(0, 0%, 30%);
    text-shadow: 1px 2px 1px;
    margin: 15px;
}

#controls button{
    font-size: 1.5rem;
    font-weight: bold;
    padding: 10px 20px;
    margin: 25px 10px;
    min-width: 125px;
    border: none;
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.5 ease;
}
#startBtn{
    background-color:hsl(115, 100%, 40%);
    
}
#startBtn:hover{
    background-color:hsl(115, 100%, 30%);
}
#stopBtn{
    background-color:hsl(10, 100%, 60%);
}
#stopBtn:hover{
    background-color:hsl(10, 100%, 40%);
}   
#resetBtn{
    background-color:hsl(209, 100%, 50%);
}
#resetBtn:hover{
    background-color:hsl(209, 100%, 35%);
}
#lapBtn{
    background-color:hsl(48, 93%, 53%);
}
#lapBtn:hover{
    background-color:hsl(48, 93%, 43%);
}
#laps {
    width: 100%;
    max-width: 600px;
    margin-top: 30px;
    font-family: monospace;
    border-collapse: collapse;
    display: none;
}

#laps table {
    width: 100%;
    border: 2px solid #333;
    border-radius: 10px;
    overflow: hidden;
}

#laps th,
#laps td {
    padding: 12px 15px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

#laps th {
    background-color: hsl(0, 0%, 20%);
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
}

#laps tr:nth-child(even) {
    background-color: hsl(50, 20%, 95%);
}

#laps tr:nth-child(odd) {
    background-color: hsl(50, 20%, 90%);
}

#laps td {
    font-size: 1.2rem;
    color: hsl(0, 0%, 30%);
}