w3.css

스크롤 시 탐색 메뉴 축소

CSS 및 JavaScript를 사용하여 스크롤 시 탐색 표시줄의 크기를 조정하는 방법을 알아보자.

스크롤 시 Navbar를 축소하는 방법

1단계) HTML 추가

탐색 모음을 만든다.

<div id="navbar">
  <a href="#default" id="logo">CompanyLogo</a>
  <div id="navbar-right">
    <a class="active" href="#home">Home</a>
    <a href="#contact">Contact</a>
    <a href="#about">About</a>
  </div>
</div>

2단계) CSS 추가

탐색 모음 스타일을 지정한다.

/* Create a sticky/fixed navbar */
#navbar {
  overflow: hidden;
  background-color: #f1f1f1;
  padding: 90px 10px; /* Large padding which will shrink on scroll (using JS) */
  transition: 0.4s; /* Adds a transition effect when the padding is decreased */
  position: fixed; /* Sticky/fixed navbar */
  width: 100%;
  top: 0; /* At the top */
  z-index: 99;
}

/* Style the navbar links */
#navbar a {
  float: left;
  color: black;
  text-align: center;
  padding: 12px;
  text-decoration: none;
  font-size: 18px;
  line-height: 25px;
  border-radius: 4px;
}

/* Style the logo */
#navbar #logo {
  font-size: 35px;
  font-weight: bold;
  transition: 0.4s;
}

/* Links on mouse-over */
#navbar a:hover {
  background-color: #ddd;
  color: black;
}

/* Style the active/current link */
#navbar a.active {
  background-color: dodgerblue;
  color: white;
}

/* Display some links to the right */
#navbar-right {
  float: right;
}

/* Add responsiveness - on screens less than 580px wide, display the navbar vertically instead of horizontally */
@media screen and (max-width: 580px) {
  #navbar {
    padding: 20px 10px !important; /* Use !important to make sure that JavaScript doesn't override the padding on small screens */
  }
  #navbar a {
    float: none;
    display: block;
    text-align: left;
  }
  #navbar-right {
    float: none;
  }
}

3단계) ​​자바스크립트 추가

// When the user scrolls down 80px from the top of the document, resize the navbar's padding and the logo's font size
window.onscroll = function() {scrollFunction()};

function scrollFunction() {
  if (document.body.scrollTop > 80 || document.documentElement.scrollTop > 80) {
    document.getElementById("navbar").style.padding = "30px 10px";
    document.getElementById("logo").style.fontSize = "25px";
  } else {
    document.getElementById("navbar").style.padding = "80px 10px";
    document.getElementById("logo").style.fontSize = "35px";
  }
}

Mingg`s Diary

밍구

공부 목적 블로그

https://maz.kr

모든 포스트 보기