<style>
.input_click{background: none;border:none;color:#0372AC;font-size:30px;}
</style>
<input id='input_mobile' readonly='readonly' class='input_click' type='button' value='13507498022' onselectstart='return false'/>
<style>
.input_click{background: none;border:none;color:#0372AC;font-size:30px;}
</style>
<input id='input_mobile' readonly='readonly' class='input_click' type='button' value='13507498022' onselectstart='return false'/>