* {
    box-sizing: border-box;
}

html {
    font-family: sans-serif;
}

body {
    margin: 0;
    background: #ccc;
}

article {
    width: 210mm;
    height: 297mm;
    margin: 20px auto;
    position: relative;
}

address {
    position: absolute;
    bottom: 8mm;
    right: 20mm;
}

h1 {
    position: absolute;
    top: 12mm;
    left: 20mm;
    width: 128px;
    height: 128px;
    font-size: 20px;
    letter-spacing: 1px;
    text-align: center;
    padding: 44px 0;
    color: rgb(69, 113, 120);
    text-shadow: 1px 1px 1px black;
}

/* Your CSS below here */

article {
    background-image: url(../images/top-image.png);
    background-position: top;
    background-repeat: no-repeat;
    background-size: contain; 
}

article  {
    background: linear-gradient(0deg, rgba(34,193,195,0.2) 0%, rgba(214,223,208,1) 23%, rgba(214,223,208,1) 51%, rgba(214,223,208,1) 77%, rgba(253,187,45,0.2) 100%) center center no-repeat,
    url(../images/top-image.png) top  no-repeat ,  url(../images/bottom-image.png) bottom no-repeat, white;
    border-block-start: 1mm solid rgb(253,187,45) ;
    border-block-end: 1mm solid rgb(34,193,195);
}

h1 {
    background-image: url(../images/logo.png);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}