What is the procedure for modifying the height of a button in HTML?

I wanted to add a flashing "Contact Us" button to the menu bar of my website to immediately attract people's attention when they visit. Here is the javascript code I used:

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<script type="text/javascript">
function blinker()
{
    document.getElementById("btnBlink").style.backgroundColor="red";
    setTimeout("document.getElementById('btnBlink').style.backgroundColor=''", 500);
    setTimeout("blinker()",1500);
}

window.onload=blinker;
</script>

And here is the HTML code I used:

<li id="menu-item-1639" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1639"><a href="http://WebsiteNameGoesHere.com/contact-us/"><input type="button" value="Contact Us" id="btnBlink" /></a></li>

While I successfully made the button blink red, it appears misaligned in the menu bar. It sits higher than the other links and I want to adjust its position to be lower.

javascripthtmlcssbutton

Answer №1

Implementing a dynamic display using either CSS3 animation or the setInterval method from JavaScript can be achieved in the following way: 


    var isDisplayed = true;
    var timer = setInterval(function() {
    var elementToShow = document.querySelector(".selected-element");
    if(isDisplayed) {
    elementToShow.style.opacity = 1;
    } else elementToShow.style.opacity = 0;
    isDisplayed = !isDisplayed;
    }, 1000);

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