.wrap {
  position: relative;
  left: 3em;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.button_prew {
    min-width: 30em;
    min-height: 6em;
    font-family: inherit;
    font-size: 1em;
    text-transform: uppercase;
    /* letter-spacing: 1px; */
    font-weight: 700;
    color: #000;
    background: #25D366;
    background: linear-gradient(90deg, rgb(37 211 102) 0%, rgb(69 238 132) 100%);
    border: none;
    border-radius: 2em;
    box-shadow: 1em 1em 2em #25d36657;
    transition: all 0.3s ease-in-out 0s;
    cursor: pointer;
    outline: none;
    position: relative;
    /* padding: 0px; */
}

.button_prew::before {
    content: '';
    border-radius: 1.5em;
    min-width: calc(28em + 2em);
    min-height: calc(4em + 2em);
    border: 6px solid rgb(113,252,165);
    box-shadow: 0 0 60px rgba(0,255,95, .64);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: all .3s ease-in-out 0s;
}

.button_prew:hover, .button_prew:focus {
    color: #000;
    transform: translateY(-6px);
}

.button_prew:hover::before, .button_prew:focus::before {
  opacity: 1;
}

.button_prew::after {
    content: '';
    width: 11em;
    height: 28em;
    border-radius: 100%;
    border: 6px solid #4ffc90;
    position: absolute;
    z-index: -1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ring 1.5s infinite;
}

.button_prew:hover::after, .button_prew:focus::after {
  animation: none;
  display: none;
}

@keyframes ring {
  0% {
    width: 30px;
    height: 30px;
    opacity: 1;
  }
  100% {
    width: 20em;
    height: 20em;
    opacity: 0;
  }
}

@media (max-width: 767px){
    .wrap {
        left: 5px;
    }
    .button_prew{
        min-width: 25em;
        min-height: 6em;
        font-size: 0.8em;
    }
    .button_prew::before{
        min-width: calc(23em + 2em);
    }
}