<p>Вибери потрібне значення для <code>column-rule</code>:</p>
<input type="number" id="width" placeholder="width" value="4" min="0" onchange="update()">
<select id="style" onchange="update()">
<option value="none">none</option>
<option value="hidden">hidden</option>
<option value="dotted">dotted</option>
<option value="dashed">dashed</option>
<option value="solid" selected>solid</option>
<option value="double">double</option>
<option value="groove">groove</option>
<option value="ridge">ridge</option>
<option value="inset">inset</option>
<option value="outset">outset</option>
</select>
<input type="color" id="color" onchange="update()">
<p id="text">Межі з шириною <strong>4px</strong>, стилем <strong>solid</strong> та кольору <strong>#000000</strong>.</p>
<hr>
<div id="block">
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tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.</p>
</div>
* {
box-sizing: border-box;
padding: 0;
}
body {
font-family: momospace;
font-size: 17px;
line-height: 1.5;
color: #222;
}
#form {
padding: 8px 16px;
font-size: 19px;
}
#block {
background: #f1f1f1;
padding: 10px;
margin-bottom: 16px;
-webkit-column-gap: 38px;
-moz-column-gap: 38px;
column-gap: 38px;
-webkit-column-count: 3;
-moz-column-count: 3;
column-count: 3;
-webkit-column-rule: 4px solid #000;
-moz-column-rule: 4px solid #000;
column-rule: 4px solid #000;
}
#text {
height: 60px;
background-color: #eee;
padding: 16px 0;
}
message {
display: none;
}
var text = document.getElementById('text');
var block = document.getElementById('block');
var width = document.getElementById('width');
var style = document.getElementById('style');
var color = document.getElementById('color');
function update() {
block.style.columnRule = width.value + 'px ' +
getVal(style) + ' ' +
color.value;
text.innerHTML = 'Межі з шириною <strong>' + width.value + 'px</strong>, стилем <strong>' + getVal(style) + '</strong> та кольору <strong>' + color.value + '</strong>';
}
function getVal(el) {
var result = '';
for (var i = 0; i < el.options.length; i++) {
if (el.options[i].selected == true) {
result = el.options[i].value;
}
}
return result;
}
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