我一直尝试将图像放置在容器内，以便将其放置在h1标记文本的顶部，但它只是将图像添加到其旁边，而我希望图像位于文本的顶部，我应该怎么做？：

const Login = () => {
        return(
        <div className="login-container">
        <form className='log' >            
        <img className='img'
        src={logo}
        alt="logo"/>         
        <hi> Hello there</hi>          
        <input placeholder="enter email"/>       
        <input placeholder="password"/>
        <button type="submit">Submit</button>
        </form>
        </div>
 )
}

下面是我的css文件，它具有登录组件文件的样式：

.login-container {
        width: 600px;
        height: 500px;
        margin-top: 20px;
        margin-bottom: 10px;
        margin-left: 350px ;
        display: flex;
        border: 7px solid grey;
        background-color: white;
        border-radius: 10px;
        align-items: center;
        justify-content: center;
}
.log{
        text-align: center;
        columns: 170px;
        position: relative;
        display: block;
        margin-left: 190px;
        margin-right: 180px;
        width: 200px;
        height: 170px;
        border: 10px solid rgb(140, 128, 168);
        border-radius: 10px;
        align-items: center;
        justify-content: center;
}
 input{
        margin-top: 30px;
        text-align: center;
        border-radius: 30px;
 }

 h1 { 
        font-family: Lato, sans-serif;
        color-scheme: blue;
        display: block;
 }

 img { 
        width: 20px;
        height: 20px;
        border-radius: 30px;
        margin-left: 60px;
  }