style.css

@import url('https://fonts.googleapis.com/css2?family=Overpass:wght@400;700&family=Radio+Canada&display=swap');

body {
    background-image: url(/cronometro.jpeg);
    background-size: cover;
    background-blend-mode: darken;
    background-color: rgba(0,0,0, 0.75);
    font-family: 'Radio Canada', sans-serif;
    color: white;
}

#titulo h1 {
    display: flex;
    margin: auto;
    align-items: center;
    text-align: center;
}

.cronometro {
    height: 70px;
    width: 350px;
    border: 0.5px solid rgb(212, 212, 212);
    border-radius: 10px;
    margin: auto;
    margin-top: 150px;
    font-size: 50px;
    align-items: center;
    text-align: center;
}

.cronometro:hover {
    border: 1px solid #fae600;
    cursor: pointer;
}

.buttons {
    display: block;
    align-items: center;
    text-align: center;
    justify-content: space-around;
    justify-items: center;
    padding: 25px;
    
}

.buttons button {
    background: rgb(82,82,82);
    color: white;
    height: 50px;
    font-size: 20px;
    border: 0.5px solid rgb(212, 212, 212);
    border-radius: 10px;
    padding-left: 25px;
    padding-right: 25px;
    margin: 5px;
    cursor: pointer;
}

.buttons button:hover {
    border: 1px solid #fae600;
    cursor: pointer;
}