Add A Background in Text Box ~ Easy HTML Tricks for Blogging

this style for adding background on blogger text box
the

pre{word-wrap:normal;padding:5px 5px 5px 35px;margin:0;background:#f0f0f0;border-left:1px solid #ccc;border-bottom:1px solid #ccc;line-height:20px;/*--Height of each line of code--*/
background:url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjInN4yMJkSpJcyCp9d3B0fYdWbjHmig7wQwtBmILPiPWkq9Gr1bMSwN_aowMNtcEroUp8hhlAnCyeaS5GccExI-FgLtLaxrhsbPYio15Y4qP8ig0xxHA-bHBKdPjEK0Njk8x3nWbPypwLI/) repeat-y left top;/*--Background of lined paper--*/
textarea{background-color:#f2f7ff

the sample page that using this is where i get this. here