* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    align-items: center;
    flex-direction: column;
    background-color: #000;
    color: #fff;
}

.main {
    margin-top: 50px;
}

.digit {
    font-size: 124px;
    font-family: 'Tinos', serif;
}

#button {
    display: flex;
    justify-content: center;
}

.btn {
    margin: 20px;
    font-size: 24px;
    padding: 8px 12px;
    border-radius: 15px;
    border: none;
    cursor: pointer;
}

#start-btn {
    background-color: rgba(108, 218, 108, 0.281);
    color: rgb(6, 247, 70);
}

#start-btn:hover {
    background-color: rgba(108, 218, 108, 0.411);
}

#stop-btn {
    background-color: rgba(218, 108, 108, 0.281);
    color: rgb(247, 6, 6);
}

#stop-btn:hover {
    background-color: rgba(218, 108, 108, 0.411);
}

#reset-btn,
#lap-btn {
    background-color: rgba(169, 163, 163, 0.55);
    color: #fff;
}

#reset-btn:hover,
#lap-btn:hover {
    background-color: rgba(169, 163, 163, 0.62);
}


#lapContainer {
    margin-top: 20px;
    font-size: 32px;
    width: 450px;
    border-top: 1px solid #fff;
    font-family: 'Tinos', serif;
}

.lap {
    display: flex;
    justify-content: space-around;
    margin: 15px 0;
    border-bottom: 1px solid #fff;
}

#stop-btn {
    display: none;
}

#lap-btn {
    display: none;
}


@media only screen and (max-width: 450px) {
    .digit {
        font-size: 64px;
    }
    .btn{
        font-size: 18px;
    }
    #lapContainer {
        width: 100%;
        font-size: 22px;
    }

}