.button-wrapper {
    padding: 40px 20px;
    width: calc(100% - 40px);
    height: 130px;
}

.example-1 {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 130px;
    height: 130px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
    text-align: center;
    line-height: 130px;
    background: #5fc3e4;
    border-radius: 50%;
    animation: shadow-pulse 1s infinite;
    cursor: pointer;
}

@keyframes shadow-pulse {
    0% {
        box-shadow: 0 0 0 0px rgba(95,195,228, 0.5);
    }

    100% {
        box-shadow: 0 0 0 35px rgba(229, 93, 135, 0);
    }
}

@keyframes shadow-pulse-big {
    0% {
        box-shadow: 0 0 0 0px rgba(229, 93, 135, 0.1);
    }

    100% {
        box-shadow: 0 0 0 70px rgba(229, 93, 135, 0);
    }
}