.highlight-names {
    background: linear-gradient(to right,transparent, white, transparent);
    border-top: 1px black solid;
    border-bottom: 1px black solid;
    color: black;
}

/** https://codepen.io/varunpopli/pen/eYvrvvo **/
.eff-shake {
    display: inline-block;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-name: shake-1; 
}

@keyframes shake-1 {
    0% {
      transform: translate(1px, -2px) rotate(-1deg);
    }
    10% {
      transform: translate(-1px, 2px) rotate(-1deg);
    }
    20% {
      transform: translate(1px, 2px) rotate(0deg);
    }
    30% {
      transform: translate(3px, 2px) rotate(0deg);
    }
    40% {
      transform: translate(1px, -1px) rotate(1deg);
    }
    50% {
      transform: translate(-1px, -2px) rotate(-1deg);
    }
    60% {
      transform: translate(-3px, 1px) rotate(0deg);
    }
    70% {
      transform: translate(3px, 1px) rotate(-1deg);
    }
    80% {
      transform: translate(-1px, -1px) rotate(1deg);
    }
    90% {
      transform: translate(-3px, 0px) rotate(1deg);
    }
    100% {
      transform: translate(1px, 1px) rotate(0deg);
    }
}