лишний пиксель в инпуте

.form__input-content {
    display: flex;
    justify-content: flex-start;
    flex-flow: row nowrap;
    padding: 0 38px;
}

.form__input-content:nth-child(1) {
    padding-bottom: 17px;
}

.form__logo-block {
    width: 45px;
    height: 45px;
    background: #E65848;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form__input {
    padding: 0 18px 0 20px;
    font-size: 15px;
    line-height: 20px;
    color: #C4C4C4;
    border: none;
}

.form__input::placeholder{
    color: #C4C4C4;
}

<div class="form__input-content">
  <div class="form__logo-block">
    <img src="img/logo/user.svg" alt="logo">
  </div>
  <input class="form__input" type="text" placeholder="Username / Email" name="username">
</div>