Hello, @Kazi Sabit,
In order to solve your issue simply go to the Dashboard >> XStore >> Theme OPtions >> Theme Custom CSS >> Global and paste the below code at the bottom of the CSS box there.
.et-mobile-panel .et_column:nth-child(3)>a span.et_b-icon{
width: 50px !important;
text-align: center !important;
background: red !important;
border-radius: 50px !important;
height: 50px !important;
margin-top: -30px !important;
border: solid 2px white !important;
}
.et-mobile-panel .et_column:nth-child(3)>a span.et_b-icon span.et-svg{margin-left:10px !important;}
.et-mobile-panel-wrapper .et-wrap-columns{overflow:visible !important;}
Then save settings and check back to your site after clearing the browser cache. The result will be appear like this: https://postimg.cc/vgRnxvf0
Regards 8Themes Team.