Zoomed Image is in poor quality in both Firefox and Chrome

Solution:
remove the related css code of `.zoom-img` inside ZeroBlog.css
```
.zoom-img {
filter: none; -webkit-filter: blur(0px); -moz-filter: blur(0px); -ms-filter: blur(0px); filter:progid:DXImageTransform.Microsoft.Blur(PixelRadius='0');
backface-visibility: hidden; transform: translateZ(0); image-rendering: optimizeSpeed;
}
```

Reference: https://stackoverflow.com/questions/9945363/image-scaling-causes-poor-quality-in-firefox-internet-explorer-but-not-chrome