如何在元素悬停时为另一个元素设置动画？

Question

我有一个HTML 5 range元素。 我需要做的是，当用户将鼠标悬停在该范围上时，拇指的高度和宽度应增加到12个像素。

CSS

.myrange::-webkit-slider-thumb{
     position:relative;
     top:-5px;
     appearance:none;
     -webkit-appearance:none;
     -webkit-transition: width 2s, height 4s;
     transition: width 2s, height 4s;
     border-radius:50px;
     background-color:rgb(9,90,0);
     border:0;
     cursor:pointer;
     visibility:hidden;
}

JavaScript的

var skb_rhdaseek = $("<style>", {"type": "text/css"}).appendTo("head");
$('.myrange').hover(function(){
    skb_rhdaseek.text('.myrange::-webkit-slider-thumb{height:12px; width:12px;}');
});

Answer 1

您还必须在整个范围元素中添加-webkit-appearance：none，以便其拇指样式化。 最后，您不需要jquery来执行此操作。

 .myrange { -webkit-appearance: none; height:10px; width:200px; background-color:#e3f2fd; } .myrange::-webkit-slider-thumb { height: 10px; width: 10px; background: #33aaff; cursor: pointer; -webkit-appearance: none; transition: height .2s ease-in-out; } input[type=range]:hover::-webkit-slider-thumb { height: 30px; } 

 <input type="range" class="myrange" value="50"> 

Answer 2

这应该可以帮助您！

 $('input').mouseenter(function() { $('input').toggleClass('over'); }); $('input').mouseleave(function() { $('input').toggleClass('over'); }) 

 input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; border: 1px solid #000000; height: 36px; width: 16px; border-radius: 3px; background: #ffffff; cursor: pointer; margin-top: -14px; box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d; } /* All the same stuff for Firefox */ input[type=range]::-moz-range-thumb { box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d; border: 1px solid #000000; height: 36px; width: 16px; border-radius: 3px; background: #ffffff; cursor: pointer; } /* All the same stuff for IE */ input[type=range]::-ms-thumb { box-shadow: 1px 1px 1px #000000, 0px 0px 1px #0d0d0d; border: 1px solid #000000; height: 36px; width: 16px; border-radius: 3px; background: #ffffff; cursor: pointer; } input[type=range].over::-webkit-slider-thumb { height: 12px; width: 12px; } /* All the same stuff for Firefox */ input[type=range].over::-moz-range-thumb { height: 12px; width: 12px; } /* All the same stuff for IE */ input[type=range].over::-ms-thumb { height: 12px; width: 12px; } input[type=range]::-webkit-slider-runnable-track { width: 100%; height: 2px; cursor: pointer; background: #3071a9; } input[type=range]::-moz-range-track { width: 100%; height: 2px; cursor: pointer; background: #3071a9; } input[type=range].over::-webkit-slider-runnable-track { height: 6px; } input[type=range].over::-moz-range-track { height: 6px; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <input type='range'>