index.css

body{

    margin: 0px;
    padding: 10px;
    font-family: Arial, Helvetica, sans-serif;
   min-width: 400px;
   max-width: 500px;
   
}

.Intro-Container{
    position: relative;
    margin: 15px;
    padding: 20px 10px;
    width: auto;
    height: 64px;
    background: #ebfffa;
    border: 1px solid #aaf2e1;
    border-radius: 4px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    color: #11a683;
}
input{
    width: 100%;
    padding:10px;
    box-sizing: border-box;
    border: 1px solid #111;
    margin-bottom: 5px;
}

.input-btn-InputBox{
    border-radius: 10px;
}

.glow-on-hover {
     display:inline-block;
    margin-bottom: 5px;
    width: 150px;
    height: 50px;
    border: none;
    outline: none;
    color: #fff;
    background: #111;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 10px;
}
.glow-on-hover:before {
    content: '';
    background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
    position: absolute;
    top: -2px;
    left:-2px;
    background-size: 400%;
    z-index: -1;
    filter: blur(5px);
    width: calc(100% + 2px);
    height: calc(100% + 2px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity .3s ease-in-out;
    border-radius: 10px;
}

.glow-on-hover:active {
    color: #000
}

.glow-on-hover:active:after {
    background: transparent;
}

.glow-on-hover:hover:before {
    opacity: 1;
}

.glow-on-hover:after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background:teal;
    left: 0;
    top: 0;
    border-radius: 10px;
}

@keyframes glowing {
    0% { background-position: 0 0; }
    50% { background-position: 400% 0; }
    100% { background-position: 0 0; }
}
ul{
list-style-type: none;
padding: 0;
}


li a{
    font-family: Arial, Helvetica, sans-serif;
color: #5b0e2d;
}