.premium-line {
    font-size: 16px;
    color: white;
    padding-top: 25px;
}
.premium-line img {
    position: absolute;
    left: 15px;
    top: 10px;
}
.premium-line a {
    position: relative;
    display: inline-block;
    height: 45px;
    background: black;
    color: white;
    font-size: 16px;
    padding: 15px 28px 13px 56px;
    border-radius: 40px;
    transition: all 1s ease;
    margin-left: 5px;
}
@keyframes animatedBackground {
    from {
      background-position: 0 0;
    }
    to {
      background-position: 100% 0;
    }
  }
.premium-a {
    color: white !important;
}
.premium-a:hover {
    background: #151515 !important;
}
.premium-line a:hover {
    background: url('../images_front/megabg5.jpg') #151515;
    -webkit-animation: animatedBackground 20s linear infinite alternate; /* Safari 4+ */
    -moz-animation: animatedBackground 20s linear infinite alternate; /* Fx 5+ */
    -o-animation: animatedBackground 20s linear infinite alternate; /* Opera 12+ */
    animation: animatedBackground 20s linear infinite alternate;
    text-decoration: none;
}
@media (min-width: 641px) {
    .premium-a {
        background: #151515;
    }
}
@media (max-width: 640px) {
    .navbar-nav {
        background: white;
    }
    .premium-a {
        background: url('../images_front/megabg5.jpg') #151515;
        -webkit-animation: animatedBackground 20s linear infinite alternate; /* Safari 4+ */
        -moz-animation: animatedBackground 20s linear infinite alternate; /* Fx 5+ */
        -o-animation: animatedBackground 20s linear infinite alternate; /* Opera 12+ */
        animation: animatedBackground 20s linear infinite alternate;
        text-decoration: none;        
    }
}