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| 1 | +<!DOCTYPE html> |
| 2 | +<html lang="en-us"> |
| 3 | + <head> |
| 4 | + <meta charset="utf-8" /> |
| 5 | + <meta name="viewport" content="width=device-width" /> |
| 6 | + <title>Overflow</title> |
| 7 | + <style> |
| 8 | +article { |
| 9 | + display: flex; |
| 10 | + gap: 1em; |
| 11 | +} |
| 12 | + |
| 13 | +label { |
| 14 | + display: block; |
| 15 | + white-space: nowrap; |
| 16 | +} |
| 17 | + |
| 18 | +pre { |
| 19 | + border: 2px dashed crimson; |
| 20 | + height: 100px; |
| 21 | + width: 20em; |
| 22 | + margin-bottom: 3em; |
| 23 | + overflow-clip-margin: 1em; |
| 24 | + text-align: center; |
| 25 | +} |
| 26 | + |
| 27 | +.wide { |
| 28 | + width: 40em; |
| 29 | +} |
| 30 | + |
| 31 | +::before { |
| 32 | + font-weight: bold; |
| 33 | + color: white; |
| 34 | + background: crimson; |
| 35 | + display: inline-block; |
| 36 | + width: 100%; |
| 37 | + padding: 3px 5px; |
| 38 | + box-sizing: border-box; |
| 39 | +} |
| 40 | + |
| 41 | +.hidden { |
| 42 | + overflow: hidden; |
| 43 | +} |
| 44 | +.hidden::before { |
| 45 | + content: "hidden: "; |
| 46 | +} |
| 47 | + |
| 48 | +.clip { |
| 49 | + overflow: clip; |
| 50 | +} |
| 51 | +.clip::before { |
| 52 | + content: "clip: "; |
| 53 | +} |
| 54 | + |
| 55 | +.scroll { |
| 56 | + overflow: scroll; |
| 57 | +} |
| 58 | +.scroll::before { |
| 59 | + content: "scroll: "; |
| 60 | +} |
| 61 | + |
| 62 | +.auto { |
| 63 | + overflow: auto; |
| 64 | +} |
| 65 | +.auto::before { |
| 66 | + content: "auto: "; |
| 67 | +} |
| 68 | + |
| 69 | +.overlay { |
| 70 | + overflow: clip; |
| 71 | + overflow: overlay; |
| 72 | +} |
| 73 | +.overlay::before { |
| 74 | + content: "overlay (or clip if not supported): "; |
| 75 | +} |
| 76 | + |
| 77 | +.visible { |
| 78 | + overflow: visible; |
| 79 | +} |
| 80 | +.visible::before { |
| 81 | + content: "visible: "; |
| 82 | +} |
| 83 | + |
| 84 | +article:not(:has(pre.clip)) > fieldset > label:nth-of-type(2), |
| 85 | +article:not(:has(pre.hidden, pre.scroll, pre.auto, pre.overlay)) fieldset fieldset { |
| 86 | + opacity: 20%; |
| 87 | + pointer-events: none; |
| 88 | +} |
| 89 | + </style> |
| 90 | + </head> |
| 91 | + <body> |
| 92 | + <article> |
| 93 | + <fieldset><legend>Select options:</legend> |
| 94 | + <label><code>overflow</code>: |
| 95 | + <select id="overflowValue"> |
| 96 | + <option>hidden</option> |
| 97 | + <option>clip</option> |
| 98 | + <option>scroll</option> |
| 99 | + <option>auto</option> |
| 100 | + <option selected>visible</option> |
| 101 | + <option>overlay</option> |
| 102 | + </select> |
| 103 | + </label> |
| 104 | + <label><code>overflow-clip-margin</code>: <input type="number" id="ocm" value="1" min="0" max="10" size="2"><code>em<code></label> |
| 105 | + </label> |
| 106 | + <label><input type="checkbox" id="wide"> <code>width</code>: <code>20em</code> or <code>40em</code></label> |
| 107 | + <fieldset><legend>Scroll programatically:</legend> |
| 108 | + <label>ScrollLeft: <input type="range" min="0" max="100" value="0" id="scrollL"></label> |
| 109 | + <label>ScrollTop: <input type="range" min="0" max="100" value="0" id="scrollT"></label> |
| 110 | + |
| 111 | + </fieldset> |
| 112 | + </fieldset> |
| 113 | + <pre class="visible"> |
| 114 | + Oh, Rubber Duckie, you're the one |
| 115 | + You make bath time lots of fun |
| 116 | + Rubber Duckie, I'm awfully fond of you |
| 117 | + |
| 118 | + Rubber Duckie, joy of joys |
| 119 | + When I squeeze you, you make noise |
| 120 | + Rubber Duckie, you're my very best friend, it's true |
| 121 | + |
| 122 | + Oh, every day when I make my way to the tubby |
| 123 | + I find a little fella who's cute and yellow and chubby |
| 124 | + Rub-a-dub-dubby |
| 125 | + |
| 126 | + <a href="#">Rubber Duckie</a>, you're so fine |
| 127 | + And I'm lucky that you're mine |
| 128 | + Rubber Duckie, I'm awfully fond of you |
| 129 | + </pre> |
| 130 | + </article> |
| 131 | + <script> |
| 132 | +const pre = document.querySelector('pre'); |
| 133 | +const val = document.getElementById("overflowValue"); |
| 134 | +const check = document.getElementById("wide"); |
| 135 | +const ocm = document.getElementById("ocm"); |
| 136 | +const scrollL = document.getElementById("scrollL"); |
| 137 | +const scrollT = document.getElementById("scrollT"); |
| 138 | + |
| 139 | +val.addEventListener("change", () => { |
| 140 | + if (pre.classList.contains("wide")) { |
| 141 | + pre.className = `wide ${val.value}`; |
| 142 | + } else { |
| 143 | + pre.className = `${val.value}`; |
| 144 | + } |
| 145 | +}); |
| 146 | + |
| 147 | +wide.addEventListener("change", () => { |
| 148 | + pre.classList.toggle("wide"); |
| 149 | +}); |
| 150 | + |
| 151 | +ocm.addEventListener("change", () => { |
| 152 | + pre.style.overflowClipMargin = `${ocm.value}em`; |
| 153 | +}); |
| 154 | + |
| 155 | +scrollL.addEventListener("change", () => { |
| 156 | + scrollExample(); |
| 157 | +}); |
| 158 | +scrollT.addEventListener("change", () => { |
| 159 | + scrollExample(); |
| 160 | +}); |
| 161 | + |
| 162 | +function scrollExample() { |
| 163 | + pre.scrollTo({ |
| 164 | + top: scrollT.value * 26, |
| 165 | + left: scrollL.value * 2, |
| 166 | + behavior: "smooth", |
| 167 | + }); |
| 168 | +} |
| 169 | + |
| 170 | + </script> |
| 171 | + </body> |
| 172 | +</html> |
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