body {
    background: url(./img-gym-bg.png) no-repeat center center/ cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 350px;
    height: 25%;
    background: white;
    border-radius: 30px;
    border: 2px solid rgb(229, 222, 222);
    text-align: center;
    padding: 30px;
    box-shadow: 0 0 10px;
}

.timer {
    font-size: 72px;
    width: 100%;
    margin-bottom: 20px;
}

button {
    margin: 0 5px;
    border: none;
    padding: 0;
}

button i {
    font-size: 1.4rem;
    color: white;
    padding: 8px;
}

#play {
    background: green;
    width: 21px;
}

#reset {
    background: red;
}

#pause {
    background: orange;
    width: 21px;
}