我对javascript和javascript animate属性刚起步，请帮帮我。我希望图像填充整个身体的宽度50％-> 100％。我希望将鼠标悬停在它上面时将其更改为100％。
更多的单词导致stackoverflow想要更多
HTML：
<html lang="en">
<head>
<script type="text/javascript" src ="js/a.js"></script>
<link rel="stylesheet" href="css/a.css" type="text/css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div class="content">
<div class="col-1" id="column1">
<div class="col-1c" id="column1c">
<img src="images/ngnl.jpg" onmouseover="colmover1()">
</div>
</div>
</div>
</body>
</html>
CSS：
.content{
background:rgba(0,0,0,0.5);
z-index:0;
position:relative;
}
.col-1{
position:relative;
float:left;
width:50%;
height:100%;
background-image:url('../images/ngnlfull.jpg');
background-repeat:no-repeat;
background-size: cover;
}
.col-1c{
background-color: rgba(0, 0, 0, 0.7);
float:left;
width: 100%;
height: 100%;
}
.col-1c img{
display:block;
margin:auto;
max-width:100%;
height:50%;
border-radius:50%;
margin-top:25%;
}
body{
margin: 0px;
padding: 0px;
outline: none;
border: 0px;
background-image: url('../images/bg.jpg');
background-repeat: no-repeat;
background-attachment: fixed;
}
Javascript：
function colmover1(){
var column1 = document.getElementById("column1");
var column1c = document.getElementById("column1c");
var column2 = document.getElementById("column2");
var column2c = document.getElementById("column2c");
column1.animate({width:'100%'});
}
// used css.content{
background:rgba(0,0,0,0.5);
z-index:0;
position:relative;
}
.col-1{
position:relative;
float:left;
width:50%;
transition: width 0.5s;
height:100%;
background-image:url('../images/ngnlfull.jpg');
background-repeat:no-repeat;
background-size: cover;
}
.col-1:hover{
width:100%;
}
.col-1c{
background-color: rgba(0, 0, 0, 0.7);
float:left;
width: 100%;
height: 100%;
}
.col-1c img{
display:block;
margin:auto;
width:100%;
border-radius:50%;
margin-top:25%;
}
body{
margin: 0px;
padding: 0px;
outline: none;
border: 0px;
background-image: url('../images/bg.jpg');
background-repeat: no-repeat;
background-attachment: fixed;
}<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript" src ="js/a.js"></script>
<link rel="stylesheet" href="css/a.css" type="text/css">
</head>
<body>
<div class="content">
<div class="col-1" id="column1">
<div class="col-1c" id="column1c">
<img src="https://i.stack.imgur.com/zcdbj.jpg?s=48&g=1" onmouseover="colmover1()">
</div>
</div>
</div>
</body>
</html>