How

What post tag? Where?
Always include as much information as possible

see in this website https://www.indiafreestuff.in where you can see on grid posts in greencolor live again and all like that

Can you describe in words what you are trying to accomplish? Besides spreading that link in the forum you aren’t being clear what you are trying to accomplish. ??

I am talking about the Live and new deal tag mentioned in below image

https://prntscr.com/1ry5hc

It’s just done with HTML and CSS:
The HTML:

<div class="deal_image">
<div class="loop_thumbnail" style="background-color:Green;color:white"> New Deal</div>
<img class=" " width="145" height="120" alt="deal" src="https://netcdn.indiafreestuff.in/wp-content/uploads/2013/09/trad-150x150.jpg">
</div>

The CSS:

.loop_thumbnail {
    background-color: #FFFFFF;
    color: #000000;
    font-size: 14px;
    font-weight: bold;
    height: 24px;
    line-height: 24px;
    margin-left: -3px;
    margin-top: 45px;
    opacity: 0.9;
    position: absolute;
    text-align: center;
    width: 149px;
}

A browser tool like Firebug can show you this kind of thing.

Helpful resources re: CSS:

https://getfirebug.com

https://www.w3schools.com/css/

https://developer.mozilla.org/en-US/learn/css

can u tell me how to hide the links of wordpress like

it has to show links.domain.com of thirdparty links

like u can see here https://indiafreestuff.in/milton-bottle-rino-600ml-rs-100-at-pepperfry/

Visit deal page hides the link with his own domain