JSFiddle - React, Tailwind, and code Playground

HTML

<input class="in1" type="text"> </input>

CSS

.in1
{
    border-radius: .2em;
    border: 1px solid #cccccc;

    -webkit-transition: border linear .2s, box-shadow linear .2s;
    -moz-transition: border linear .2s, box-shadow linear .2s;
    -o-transition: border linear .2s, box-shadow linear .2s;
    transition: border linear .2s, box-shadow linear .2s;
}

.in1:focus
{
    border-color: rgba(1, 168, 255, 0.8);
    outline: 0;
    outline: thin dotted \9;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px     rgba(82,168,236,.6);
    -moz-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6);
}