Envelope-style box with stamp

by stofke

HTML

<p class="from">From: Benny Schudel</p>
<p class="to">To: Lea Verou</p>

<p class="stamp">
    80 Cents - Swiss postal
    <span class="marker">CH-8000 Zürich - 11/09/20</span>
</p>

CSS

html { background: white }

body {
    position:relative;
    width: 550px;
    height: 300px;
    border:15px solid transparent;
    background: #feb;
    background-image: -moz-linear-gradient(#feb, #feb), 
        -moz-repeating-linear-gradient(-45deg, #d50, #d50 15px, transparent 15px, transparent 30px, #15c 30px, #15c 45px, transparent 45px, transparent 60px);
    background-image: -ms-linear-gradient(#feb, #feb), 
        -ms-repeating-linear-gradient(-45deg, #d50, #d50 15px, transparent 15px, transparent 30px, #15c 30px, #15c 45px, transparent 45px, transparent 60px);
    background-image: -o-linear-gradient(#feb, #feb), 
        -o-repeating-linear-gradient(-45deg, #d50, #d50 15px, transparent 15px, transparent 30px, #15c 30px, #15c 45px, transparent 45px, transparent 60px);
    background-image: -webkit-linear-gradient(#feb, #feb), 
        -webkit-repeating-linear-gradient(-45deg, #d50, #d50 15px, transparent 15px, transparent 30px, #15c 30px, #15c 45px, transparent 45px, transparent 60px);
    background-clip: padding-box, border-box;
    background-origin: border-box;
    font: italic 100% Georgia, serif;
    box-shadow:2px 2px 13px rgba(0,0,0,.5);
    border-radius: 5px;
}
body:before {
    background-image: -webkit-linear-gradient(-90deg, hsla(0,0%,100%,0.2), hsla(0,0%,0%,0.1));
    background-image: -moz-linear-gradient(-90deg, hsla(0,0%,100%,0.2), hsla(0,0%,0%,0.1));
    background-image: -o-linear-gradient(-90deg, hsla(0,0%,100%,0.2), hsla(0,0%,0%,0.1));
    content: "";
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    margin: -25px 0 0 -25px;
    padding: 0 30px 30px 0;
    border-radius: 5px;
    box-shadow: inset 0 0 4px hsla(0,0%,0%,0.1);
}

body p.to {
    position:absolute;
    right:3em;
    bottom:1.5em;
    font-size:150%;
}

body p.from {
    position: absolute;
    top: 0;
    left: 0.6em;
}

.stamp {
    position: absolute;
    right: 20px;
    top: 20px;

    width: 75px;
    height: 100px;
   ...