.header { background-color: white;
    height: 60px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    position: fixed;
    top: 0px;
    bottom: 0px;
    right: 0px;
    left: 0px;
    border-bottom-width: 1px;
    border-bottom-style: solid;
    border-bottom-color: rgb(199, 192, 192);
    z-index: 100;
    }

    .left-section {
      display: flex;
      align-items: center;
    }

    .middle-section {
    display: flex;
    flex: 1;
    margin-left: 70px;
    margin-right: 35px;
    max-width: 500px;
    flex-shrink: 0;
    align-items: center;
    }

    .right-section {
    width: 270px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-right: 20px;
    flex-shrink: 0;
    }

    .hamburger-menu {
      width: 20px;
      margin-left: 24px;
      margin-right: 20px;
      height: 20px;
      color: rgba(192, 192, 192);
    }

    .youtube-logo {
      width: 88px;
      margin-left: 15px;
    }

    .search-bar {
    flex: 1;
    height: 36px;
    padding-left: 10px;
    border-width: 1px;
    border-color: rgb(212, 212, 212);
    color: rgb(3, 3, 3);
    border-style: solid;
    font-size: 16px;
    margin-left: -1px;
    border-radius: 2px;
    box-shadow: inset 0px 0px 2px;
    width: 0px;
    }

    .main-icon {
      height: 23px;
      color: rgba(192, 192, 192);
    }

    .search-bar::placeholder {
    font-family: roboto, arial;
    font-size: 14px;
    padding-left: 8px;
    }

    .search-button {
    width: 60px;
    height: 39px;
    border-width: 01px;
    color: rgb(197, 197, 197);
    border-style: solid;
    margin-left: -1px;
    border-color: rgb(192, 192, 192);
    background-color: rgb(247, 246, 246);
    }

    .search-button,
    .voice-search-icon,
    .upload-icon-div,
    .tube-apps-div,
    .notification-icon-container {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .search-button .tool-tip,
    .voice-search-button .tool-tip, 
    .upload-icon-div .tool-tip,
    .tube-apps-div .tool-tip,
    .notification-icon-container .tool-tip {
      background-color: grey;
      font-family: roboto,  arial;
      font-size: 12px;
      padding-top: 3px;
      padding-bottom: 3px;
      padding-left: 8px;
      padding-right: 8px;
      color: white;
      border-radius: 2px;
      position: absolute;
      bottom: -30px;
      opacity: 0;
      transition: opacity 0.15s;
      pointer-events: none;
      white-space: nowrap;
    }

    .search-button:hover .tool-tip,
    .voice-search-button:hover .tool-tip,
    .upload-icon-div:hover .tool-tip,
    .tube-apps-div:hover .tool-tip,
    .notification-icon-container:hover .tool-tip {
      opacity: 1;
    }

    .voice-search-button {
      width: 39px;
      border: none;
      background-color: rgb(247, 246, 246);
      border-radius: 20px;
      height: 40px;
      margin-left: 10px;
    }
    
    .voice-icon{
      height: 24px;
    }

    .upload-icon {
      width: 24px;
      color: rgba(192, 192, 192);
    }

    .youtube-apps {
    width: 24px;
    }

    .my-channel {
      width: 31px;
      height: 32px;
      padding: 7px;
    }

    .notifications-icon {
      width: 26px;
      color: rgba(192, 192, 192);
    }

    .notification-icon-container {
      position: relative;
    }

      .notification-counts {
        position: absolute;
        top: 0px;
        right: -1px;
        background-color: red;
        color: white;
        font-family: roboto, arial;
        font-size: 9px;
        border-radius: 20px;
        padding-left: 4px;
        padding-right: 3px;
        padding-top: 1px;
        padding-bottom: 1px;
      }