Try it Editor: Text in Transparent Box

Edit This Code :

<!DOCTYPE html>
<html>
<head>
<style>
div.background {
  background: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi73h3FH2OwlluzvFdXnwcGTl2iKGSLKW6LrKRin52VPNNzh83MghA-vdYunPMIoX-Uabd-cYWeF8-k2sx5CHNm5dIulQZQnKzW2c8YfStThoPC53GS0LbU8fjgVWEVpI5AUoC7hosV14f0/s320/img_mountains.jpg) repeat;
  border: 2px solid black;
}

div.transbox {
  margin: 30px;
  background-color: #ffffff;
  border: 1px solid black;
  opacity: 0.6;
  filter: alpha(opacity=60); /* For IE8 and earlier */
}

div.transbox p {
  margin: 5%;
  font-weight: bold;
  color: #000000;
}
</style>
</head>
<body>

<div class="background">
  <div class="transbox">
    <p>This is some text that is placed in the transparent box.</p>
  </div>
</div>

</body>
</html>
Result :