/* The animation code */
@keyframes border-ani {
    0% {
        border-color: red;
        border-width:2px;
        color:white;
    }


    50% {
        border-color: orange;
        background-color:orange;
        border-width:2px;
        color:white;
    }

    100% {
        border-color: red;
        border-width: 2px;
        color: white;
    }

}


/* The element to apply the animation to */
.border-ani {
  animation-name: border-ani;
  animation-duration: 1s;
  animation-iteration-count:infinite;
}