Add A Text Box Under My Banner In My Product Page

Site URL: http://www.stephaniegagos.com/artforsale

Hi, I am looking to add a text box under the banner section and before the product listed on my product page and i don't know how to go about it.

Kindly help me out!

Attached is a photo that explain my need.

Add to Art Shop Page Header

<style>
  .view-list div#content:before {
    content: "enter description here";
    display: block;
    margin-bottom: 20px;
    text-align: center;
}
</style>