soodomaa i solved the problem
.fixed-pwa-install {
position: fixed;
bottom: 7rem;
padding: 20px 25px !important;
background-color: #fff;
-webkit-box-shadow: 0px 2px 25px 12px rgb(0 0 0 / 9%);
box-shadow: 0px 2px 25px 12px rgb(0 0 0 / 9%);
display: -webkit-inline-box;
display: -ms-inline-flexbox;
display: inline-flex;
width: 90%;
border-radius: 10px;
height: 6rem;
justify-content: space-around;
text-align: left;
z-index:3;
visibility: visible;
}
.pwa-phone-icon {
font-size: 2rem;
padding: 0 5px;
}
Thank you Guys