.warehouse-form-register .warehouse-icon {
    position: relative;
}

.warehouse-form-register .warehouse-icon i {
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    color: silver;
    font-size: 12px;
}

.warehouse-form-register #warehouse-username,
.warehouse-form-register #warehouse-email,
.warehouse-form-register #warehouse-confirm-password,
.warehouse-form-register #warehouse-password {
    padding: 10px 10px 10px 30px;
}