<button class="btn btn-01">Button</button>
body{
background-image: linear-gradient( 96.5deg,  rgba(39,103,187,1) 10.4%, rgba(16,72,144,1) 87.7% );
}
.btn
{      
    overflow: hidden;
    border: 2px solid white;  
    font-family: 'Arial';
    font-size: 1rem;
    color: white;
    background: none;
    cursor: pointer;
    padding: 25px 80px;
    display: inline-block;
    margin: 15px 30px;
    text-transform: uppercase;
    outline: none;
    position: relative;
    transition: all 0.3s;
    border-radius: 4rem;
    font-weight:700;
}
.btn:after{
    content: '';
    position: absolute;
    z-index: -1;
    transition: all 0.3s;
   box-sizing: border-box;
}
.btn-01:hover{
  background-color:white;
  color:#457b9d;
  transform: scale(1.1)
}

External CSS

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External JavaScript

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