<input type="radio" checked="checked" value="male" name="gender"/> Male<br/>
  <input type="radio" value="female" name="gender"/> Female<br/>
  <input type="checkbox" checked="checked" value="Bike"/> I have a bike<br/>
  <input type="checkbox" value="Car"/> I have a car 
body{
  background: #1f1f1f;
  width: 80%;
  border: 1px dashed #ffffff;
  margin: auto;
  padding: 50px;
  color: #ffffff;
}

/* checked selector */
input:checked {
   height: 30px;
   width: 30px;
}

External CSS

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External JavaScript

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