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Prévisualisation

HTML 
<label class="container">
  <input checked="checked" type="checkbox">
    <svg viewBox="0 0 576 512" height="1em" xmlns="http://www.w3.org/2000/svg" class="lock-open"><path d="M352 144c0-44.2 35.8-80 80-80s80 35.8 80 80v48c0 17.7 14.3 32 32 32s32-14.3 32-32V144C576 64.5 511.5 0 432 0S288 64.5 288 144v48H64c-35.3 0-64 28.7-64 64V448c0 35.3 28.7 64 64 64H384c35.3 0 64-28.7 64-64V256c0-35.3-28.7-64-64-64H352V144z"></path></svg>
    <svg viewBox="0 0 448 512" height="1em" xmlns="http://www.w3.org/2000/svg" class="lock"><path d="M144 144v48H304V144c0-44.2-35.8-80-80-80s-80 35.8-80 80zM80 192V144C80 64.5 144.5 0 224 0s144 64.5 144 144v48h16c35.3 0 64 28.7 64 64V448c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V256c0-35.3-28.7-64 64-64H80z"></path></svg>
</label>
CSS 
.container {
  --color: #a5a5b0;
  --size: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  cursor: pointer;
  font-size: var(--size);
  user-select: none;
  fill: var(--color);
}

.container .lock-open {
  position: absolute;
  animation: keyframes-fill .5s;
}

.container .lock {
  position: absolute;
  display: none;
  animation: keyframes-fill .5s;
}

/* ------ On check event ------ */
.container input:checked ~ .lock-open {
  display: none;
}

.container input:checked ~ .lock {
  display: block;
}

/* ------ Hide the default checkbox ------ */
.container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

/* ------ Animation ------ */
@keyframes keyframes-fill {
  0% {
    transform: scale(0);
    opacity: 0;
  }

  50% {
    transform: scale(1.2);
  }
}

License MIT

Original author: catraco

Copyright - 2026 catraco Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.