*{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    box-sizing: border-box;
}
body{
    background:#F2B5D4;
}
.stopwatch{
    min-width: 500px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #F5DFE6;
    border-radius: 10px;
    text-align: center;
}
.stopwatch h1{
    margin-top: 60px;
    font-size: 60px;
    font-weight: 300;
}
.buttons{
    display: flex;
    align-items: center;
    justify-content: center;
}
.buttons img{
    width: 50px;
    margin: 20px;
    cursor: pointer;
}
.buttons img:nth-child(2){
    width: 80px;
}