CSS Class to Glow Textbox on Focus

input {
    border: 1px solid black;
    margin-top: 150px;
    margin-left: 100px;
    
    height: 45px;
    width: 300px;
    padding: 5px;
    border-radius: 5px;
    
    font-size: 30px;
    
    transition:.2s linear;
    -webkit-transition:.2s linear;
    -moz-transition:.2s linear;
}

input:focus {
    outline: none;
    box-shadow: 0px 0px 7px #61C5FA;
    border-color: #61C5FA;
}

Check The Demo Below: