JSFiddle - React, Tailwind, and code Playground

HTML

<div class="applications">
  <a href="https://creator.zoho.com/zoho_tbh/tm2/#Page:Home">
    <div id="one"></div>
  </a>
  <a href="#">
    <div id="two"></div
  </a>
  
  <div id="three"></div>
  <div id="four"></div>
  <div id="five"></div>
  <div id="six"></div>
</div>

CSS

.applications {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.applications a>div {
  width: 200px !important;
  height: 200px !important;
  border-radius: 40px;
  opacity: 0.75;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

#one {
  transition: all 0.2s ease-in-out;
  background-image: url('https://iz.zohostatic.com/sites/default/files/zoho-logo-zh.png');
  Background-color: #fff;
}

#two {
  transition: all 0.2s ease-in-out;
  background-image: url('https://partner.microsoft.com/-/media/mssc/mpn/partner/solutions/images/simplehero_sideimage_400x225_office365.ashx');
  background-color: #D73B02;
}

#three {}

#four {}

#five {}

#six {}