.header{
    height: 55px; 
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    position: fixed;
    top: 0px;
    left: 0px;
    right: 0px;
    z-index: 100;
    background-color: white;
    border-bottom-width: 2px; 
    border-style: solid;
    border-color:rgb(236, 234, 234);
    
    
}

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

}
.hamburger-menu{
  height: 20px;
  margin-left: 20px;
  margin-right:24px;
 

}

.hamburger-menu, .youtube-logo, .search-button,.voice-icon, 
.upload-icon,.youtube-app,.notification-icon, .my-channel-icon{
   cursor: pointer;
}
.youtube-logo{
  height: 20px;  
}

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

.search-bar{
  flex: 1;
  height: 36px;
  padding-left: 10px;
  font-size: 16px;
  border: 2px solid rgb(226, 224, 224) ;
  border-radius: 5px; 
  box-shadow: inset 1px 2px, 3px rgba(0, 0, 0, 0.5);
  flex-shrink: 0;
  width: 0;
}

.search-bar::placeholder{
font-weight: roboto, Arial; 
font-size: 16px; 

}

.search-button{
  height: 40px;
  width: 66px; 
  border: 1px solid rgb(226, 224, 224);
  background-color: rgb(253, 250, 250);
   margin-left:-1px;
   margin-right: 8px;
  position: relative;
}

.search-button, .vioce-button, .upload-contianer, 
.youtube-app-contianer, .notification-contianer{
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.search-button .tooltip,
.vioce-button .tooltip,
.upload-contianer .tooltip,
.youtube-app-contianer .tooltip,
.notification-contianer .tooltip{
  position: absolute;
  padding: 4px 7px;
  background-color: gray;
  color: white;
  bottom: -30px;
  opacity: 0;
  transition: opacity 0.5;
  pointer-events: none;
  white-space: nowrap;
}

.search-button:hover .tooltip,
 .vioce-button:hover .tooltip,
 .upload-contianer:hover .tooltip,
 .youtube-app-contianer:hover .tooltip,
 .notification-contianer:hover .tooltip{
  opacity: 0.6;

}

.search-icon{
  height:28px ;

}

.vioce-button{
  height: 40px;
  width: 40px; 
  border-radius: 20px; 
  border: none;
  background-color: rgb(245, 244, 244);
  
}



.voice-icon{
  height: 24px;
 
}

.right-section{
  width:150px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-right: 20px;
  flex-shrink: 0;
}


.upload-icon{
  height: 20px;
}

.youtube-app{
height: 20px;  
}

.notification-icon{
 height: 20px;   
}

.notification-icon-box{
  position: relative;
}
.notification-count{
  font-size: 11px;
  padding: 1px 4px;
  border-radius: 15px;
  background-color: red;
  color: white;
  position: absolute;
  top:-3px;
  right: -3px;
}

.my-channel-icon{
height: 32px; 
border-radius: 16px;
}