<div class="input-icon-wrap">
<span class="input-icon">
<span class="fa fa-user"></span>
</span>
<input type="text" class="input-with-icon" id="form-name">
</div>
// css
.input-icon-wrap {
border: 1px solid #ddd;
display: flex;
flex-direction: row;
}
.input-icon {
background: #ddd;
}
.input-with-icon {
border: none;
flex: 1;
}
.input-icon, .input-with-icon {
padding: 10px;
}