<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Create button hover</title>
    
</head>
<body>
  <h3>
    Creative buttons, showing icon on mouse over 
  </h3>
<div>
    <button class="btn-1">Hover over me</button>
</div>

<div>
    <button class="login-btn">Login</button>
</div>

<div>
    <button class="logout-btn">Logout</button>
</div>
</body>
 <!-- Footer starts-->
 <footer class="footer">

    <!-- Copyright -->
    <!-- ❤️  -->
    <div class="footer-copyright text-center">&copy; Developed with <i class="fas fa-heart" aria-hidden="true"></i> by
        <a href="https://grohit.com/" class="white-text">G Rohit</a>. <a href="https://codepen.io/grohit/">Check my other pens </a>
    </div>
    <!-- Copyright -->

</footer>
<!-- Footer ends-->
</html>
html {
    position: relative;
    min-height: 100%;
  }

body {
    background: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-weight: 400;
flex-direction: column;
position: relative;
font-family: Hack, monospace;

 
    div {
        margin: 20px;
    }
}

.btn-1 {
    font-family: Hack, monospace;
    background: #0F0F6D;
    color: #ffffff;
    cursor: pointer;
    font-size: 2em;
    padding: 1.5rem;
    border: 0;
    transition: all 0.5s;
    border-radius: 10px;
    width: auto;
    position: relative;

    &::after {
        content: "\f054";
        font-family: "Font Awesome 5 Pro";
        font-weight: 400;
        position: absolute;
        left: 85%;
        top: 31%;
        right: 5%;
        bottom: 0;
        opacity: 0;

    }

    &:hover {
        background: #2b2bff;
        transition: all 0.5s;
        border-radius: 10px;
        box-shadow: 0px 6px 15px #0000ff61;
        padding: 1.5rem 3.5rem 1.5rem 1.5rem;

        &::after {
            opacity: 1;
            transition: all 0.5s;

        }
    }


}


.login-btn {
    font-family: Hack, monospace;
    background: #bbff00;
    color: #1d1d1d;
    cursor: pointer;
    font-size: 2em;
    padding: 1.5rem;
    border: 0;
    transition: all 0.5s;
    border-radius: 10px;
    width: auto;
    position: relative;
    min-width: 250px;

    &::after {
        content: "\f2f6";
        font-family: "Font Awesome 5 Pro";
        font-weight: 400;
        position: absolute;
        left: 80%;
        top: 54%;
        right: 0;
        bottom: 0;
        opacity: 0;
        transform: translate(-50%, -50%);

    }

    &:hover {
        background: #2b2bff;
        transition: all 0.5s;
        border-radius: 10px;
        box-shadow: 0px 6px 15px #0000ff61;
        padding: 1.5rem 3rem 1.5rem 1.5rem;
        color: #ffffff;

        &::after {
            opacity: 1;
            transition: all 0.5s;
            color: #ffffff;

        }
    }


}


.logout-btn {
    font-family: Hack, monospace;
    background: #d3d3d3;
    color: #2c2c2c;
    cursor: pointer;
    font-size: 2em;
    padding: 1.5rem;
    border: 0;
    transition: all 0.5s;
    border-radius: 10px;
    width: auto;
    position: relative;
    min-width: 250px;

    &::after {
        content: "\f2f5";
        font-family: "Font Awesome 5 Pro";
        font-weight: 400;
        position: absolute;
        left: 80%;
        top: 54%;
        right: 0;
        bottom: 0;
        opacity: 0;
        transform: translate(-50%, -50%);

    }

    &:hover {
        background: #2b2bff;
        transition: all 0.5s;
        border-radius: 10px;
        box-shadow: 0px 6px 15px #0000ff61;
        padding: 1.5rem 3rem 1.5rem 1.5rem;
color: #ffffff;
        &::after {
            opacity: 1;
            transition: all 0.5s;
            color: #ffffff;

        }
    }


}


.footer {
    position: absolute;
  font-size: 12px;
    bottom: 0;
    width: 100%;
    height: 60px; /* Set the fixed height of the footer here */ 
    background-color: #f5f5f5;
    text-align: center;
    a {
        text-decoration: none;
        color: inherit;
       border-bottom: 1px solid;
        &:hover {
        border-bottom: 1px transparent;
        }
    }
  }
View Compiled

External CSS

  1. https://pro.fontawesome.com/releases/v5.12.0/css/all.css
  2. https://cdn.jsdelivr.net/npm/hack-font@3/build/web/hack.css

External JavaScript

This Pen doesn't use any external JavaScript resources.