body {
    --primary-color: #da70aa;
}

#neon {
    transition: all .5s;
}

#neontab {
    border: 1px solid var(--primary-color);
}

#neontab > li.active > a {
    color: #ffffff;
    background: var(--primary-color)!important;
}

#neontab > li.active:not(:last-child) > a:after {
    border-left: 10px solid var(--primary-color);
}

.button {
    display: inline-block;
    border: 0.1em solid var(--primary-color);
    padding: 4px 0 4px 0;
    text-decoration: none;
    font-weight: 300;
    font-size: 120%;
    color: #FFF;
    text-align: center;
    transition: all 0.5s;
    background-color: var(--primary-color);
    width: 100%;
    letter-spacing: 3px;
}

.button-call1 {
    display: inline-block;
    border: 0.1em solid #1ddaed;
    padding: 4px 0 4px 0;
    text-decoration: none;

}


         
.button-call {
    background-image: linear-gradient(to right, #fc00ff 0%, #00dbde  51%, #fc00ff  100%);
    padding: 4px 0 4px 0;
    text-align: center;
    text-transform: uppercase;
    transition: 0.5s;
    background-size: 200% auto;
    color: white;            
    box-shadow: 0 0 20px #eee;
    display: block;
    width: 100%;
    letter-spacing: 3px;
    font-weight: 300;
    font-size: 120%;

  }

  .button-call:hover {
    background-position: right center; /* change the direction of the change here */
    color: #fff;
    text-decoration: none;
  }