Pure CSS PopUp Form Search

Pure CSS PopUp Form Search

by Adi Jaya

HTML

<label for="checkbox-search" aria-label="Toggle form Search" role="button" tabindex="0" class="button">
    Click Me...
</label>

    <p>Lorem</p>
    <p>Ipsum</p>
    <p>Dolor</p>
    
<input id="checkbox-search" type="checkbox"/>
<div id="search-container">
    <label for="checkbox-search">
        <span class="null-close">Close</span>
    </label>
    <div class="form-container">
        <form>
            <input class='input' 
                placeholder='Search..' 
                spellcheck='false'
            />
        </form>
    </div>
</div>

CSS

body {
    margin: 16px;
    font-family: sans-serif;
}

.button {
    padding: 8px 12px;
    border: 1px solid #0a3fca;
    border-radius: 4px;
    cursor: pointer;
    line-height: 1;
    background: blue;
    color: #fff;
    margin: 1em;
    display: inline-block;
}

#checkbox-search {
    display: none;
}


#search-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.83);
    -webkit-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
    -webkit-transform: scale(0);
        -ms-transform: scale(0);
            transform: scale(0);
    visibility: hidden;
    opacity: 0;
}


/*
    #search-container.open for handle with js,
    if css no support
*/
#checkbox-search:checked ~ #search-container,
#search-container.open {
    -webkit-transform: scale(1);
        -ms-transform: scale(1);
            transform: scale(1);
    visibility: visible; /* CSS Web Safe browser */
    opacity: 1;
}

/* Reference [visibility]

https://developer.mozilla.org/en-US/docs/Web/CSS/visibility#Browser_compatibility

https://caniuse.com/#search=visibility

*/


#search-container label {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.form-container {
    position: relative;
    top: 35%;
    padding: 1em;
    margin: 0 auto;
    max-width: 600px;
    z-index: 100;
}

.input {
    display: block;
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid #fff;
    font-size: 200%;
    color: #fff;
    padding: 8px 0;
    outline: none;
}

.null-close {
    position: absolute;
    right: 10px;
    top: 10px;
    color: #fff;
    cursor: pointer;
}

JavaScript

/* if browser not support CSS [ :checked ~ selector ]

$( document ).on( "change", "#checkbox-search", function(){
	var target = $( "#search-container" );
    var checked = $( this );
    if( checked.is( ":checked" ) ) {
    	target.addClass( "open" );
    } else {
    	target.removeClass( "open" );
    }
});

*/