Hi Koda,
The quantity text is not added by the theme, can you check if there’s a setting to remove the text within the plugin (quantity field on shop page for Woocommerce)?
For the floating price, try this CSS:
body:not(.single).woocommerce ul.products li.product .price {
position: absolute;
top: 0;
right: -10px;
background-color: grey;
color: white;
padding: 10px;
}
body:not(.single).woocommerce ul.products li.product .price:after {
content:'';
position:absolute;
bottom: -5px;
width: 0;
height: 0;
border-style: solid;
border-width: 5px 10px 0 0;
border-color: black transparent transparent transparent;
}