/**** Reset ****/

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

/**** Style général de la page ****/

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pulse {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #eeeeee;
}

.pulse::after,
.pulse::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #ff0000;
    margin-top: -25px;
    margin-left: -25px;
    opacity: 0;
    animation: pulse 2s linear 2.3s infinite; 
}

.pulse::before {
    animation: pulse 3s linear infinite;
}

/**** Aniamtion pulse ****/

@keyframes pulse {
    0% {
      opacity: 1;
      transform: scale(0);
    }

    100% {
      opacity: 0;
      transform: scale(1.4);
    }
}