JSFiddle - React, Tailwind, and code Playground

by davidcl64

HTML

<div class="wrapper">
    <div id='captchaPanel'>//some HTML</div>
    <div id='alertPanel'>in the middle</div>
</div>

CSS

html, body {
    height: 100%;
    width: 100%;    
}
.wrapper {
    height: 60%;
    width: 57%;
    position: relative;
    vertical-align:middle;
    margin-left: auto;
    margin-right: auto;
    border-radius:15px;
    overflow: hidden;
}
#alertPanel {
    height: 20%;
    width: 30%;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    background-color:blue;
    xfloat:none;
}
#captchaPanel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color:#580200;
    vertical-align:middle;
    margin-left: auto;
    margin-right: auto;
    border-radius:15px;
    opacity:.105;
    z-index:-1;
}