Откуда взялся этот отступ?

.container {
    width: 100%;
    max-width: 1350px;
    margin: 0 auto;
    
}

/*============ Header =============*/

.header {
    height: 100px;
    width: 100%;
    transition: all 0.5s;
    height: 100px;
    position: fixed;
    top: -120px;
    left: 0;
    right: 0;
    transition: all 1s;
}
  
.active {
    top: 0;
}
    

.header.header-out {
    transform: translateY(-100%);
    
}
.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    
}
.header__logo {
    margin-left: 50px;
    padding: 0;
    margin-top: 0;
}

.nav {
    margin-right: 50px;
}
.nav__link {
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    text-transform: uppercase;
    margin-left: 20px;
    color: rgb(0, 0, 0);
    opacity: 0.8;    
}
.nav__link:hover {
    opacity: 1;   
}

/*============ INTRO =============*/


.intro {
    background-color: rgb(233, 0, 0);
    background-image: url(../images/into-test.jpg);
    height: 100vh;
    background-repeat: no-repeat;
    background-size: cover;
}

<header class="header">
    <div class="header__inner">
        <img class="header__logo" src="images/header-logo.png">
        <nav class="nav">
            <a href="#" class="nav__link">Дома</a>
            <a href="#" class="nav__link">Прайс</a>
            <a href="#" class="nav__link">Фотогалерея</a>
            <a href="#" class="nav__link">О нас</a>
            <a href="#" class="nav__link">Контакты</a>
        </nav>
    </div>
</header>




<div class="intro">
    <div class="container">
        <div class="intro__inner">
            <h1>НЕ ПОНЯТНО ЧТО</h1>
        </div>
    </div>
</div>