2 回答

TA貢獻1784條經驗 獲得超2個贊
如果您在圖像中使用絕對值,它將始終位于其他所有內容之上。
看看下面,看看這是否是您想要的。
function pet_head(event) {
/*var image = getElementById("image");
image.src = "DogPet.gif";
setTimeout(function() {
image.src = "dog.jpeg";
}, 1000 //length of gif
);*/
alert('changed');
};
document.getElementById('click').addEventListener('click', pet_head);
img {
height: 100%;
width: 100%;
}
div {
/* This will center the image horizontally */
display: flex;
justify-content: center;
position: absolute;
}
div#click {
color: green;
border: 2px solid red;
top: 14%;
height: 45%;
width: 300px;
position: absolute;
}
<div class="main">
<div id="click"></div>
<img id="image" src="https://i.insider.com/5df126b679d7570ad2044f3e?width=1100&format=jpeg&auto=webp" />
</div>

TA貢獻1820條經驗 獲得超10個贊
這是您的代碼的工作版本。另請注意(除了刪除代碼拼寫錯誤之外)我添加object-fit: cover到您的img,以便它在視口大小變化時保留縱橫比。
function pet_head() {
// var image = document.getElementById("image");
alert("petting the dog");
/* image.src = "DogPet.gif";
setTimeout(function() {
image.src = "dog.jpeg";
}, 1000 //length of gif
); */
};
document.querySelector(".click").addEventListener("click", pet_head);
img {
height: 100%;
width: 100%;
position: absolute;
object-fit: cover;
}
.click {
position: absolute;
left: 49%;
top: 22px;
height: 13vh;
width: 17vw;
cursor: pointer;
}
/* Presentational styles */
.click {
background: yellow;
opacity: .1;
}
html, body {
margin: 0;
}
*, *::before, &::after {
box-sizing: border-box;
}
<div class="main">
<img id="image" src="https://i.stack.imgur.com/FthXz.jpg">
<div class="click"></div>
</div>
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