squirrel-theme/css/header.css

.header {
    margin: auto;
    padding: 1.5rem;
    padding-bottom: 0.5rem;
    text-align: center;
    display: flex;
    font-size: large;
    overflow: hidden;
    height: auto;
}

.logo {
    display: flex;
    height: 3.5rem;
}

.header-items {
    margin: auto;
    /* padding-right: 1rem;
    margin-right: 0px; */
    margin-left: 0px;
    display: flex;
    float: right;
    right: 0px;
    align-items: right;
    text-align: right;
}

.header-items .menu-icon {
    display: none;
    font-size: larger;
}

.header-item {
    margin-left: 2.5rem
}

.dropdown {
    float: left;
    overflow: hidden;
}

.dropdown .dropbtn { 
    border: none;
    outline: none;
    margin: 0;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
}

.dropdown-content a {
    float: none;
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {
    background-color: #ddd;
}

.dropdown:hover .dropdown-content {
    display: block;
}

@media screen and (max-width: 600px) {
    .header-items .dropdown .dropbtn {
      display: none;
    }
    .header-items .header-item {
        display: none;
    }
    .header-items a.menu-icon {
      float: right;
      display: block;
    }
}
  
@media screen and (max-width: 600px) {
    .header-items.responsive {position: relative;}
    .header-items.responsive .menu-icon {
      position: absolute;
      right: 0;
      top: 0;
    }
    .header-items.responsive a {
      float: none;
      display: block;
      text-align: left;
    }
    .header-items.responsive .dropdown {float: none;}
    .header-items.responsive .dropdown-content {position: relative;}
    .header-items.responsive .dropdown .dropbtn {
      display: block;
      width: 100vw;
      text-align: left;
    }
    .header-items.responsive .header-item {
        display: block;
        width: 100vw;
        text-align: left;
    }
}