在css中vw和vh分别代表所占的百分比,可以设置最外部的容器的宽高,但是都要结合百分比一起使用。
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图片宽度(目前1024像素): 128 1024
点击我出现图片弹框
代码
css代码:
.dialog_container {
display: none;
width: 100%;
width: 100vw;
height: 100%;
height: 100vh;
background-color: rgba(0,0,0,.35);
text-align: center;
position: fixed;
top: 0;
left: 0;
z-index: 10;
}
.dialog_container:after {
display: inline-block;
content: '';
width: 0;
height: 100%;
vertical-align: middle;
}
.dialog_box {
display: inline-block;
border: 1px solid #ccc;
text-align: left;
vertical-align: middle;
position: relative;
}
.dialog_title {
line-height: 28px;
padding-left: 5px;
padding-right: 5px;
border-bottom: 1px solid #ccc;
background-color: #eee;
font-size: 12px;
text-align: left;
}
.dialog_close {
position: absolute;
top: 5px;
right: 5px;
}
.dialog_body {
background-color: #fff;
}
.demo_image {
-webkit-transition: width .3s;
-moz-transition: width .3s;
transition: width .3s;
}
html代码:
尺寸动态可变图片
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js代码:
(function() {
if (typeof window.screenx === number) {
var $ = function(selector) {
return document.queryselector(selector);
};
// 元素们
var elewidth = $(#imagewidth), elerange = $(input[type='range']), elebtn = $(#testbutton),
eledialog = $(#dialogcontainer);
elebtn.addeventlistener(click, function() {
$(#dialogbody img).style.width = elerange.value + px;
eledialog.style.display = inline;
});
elerange.addeventlistener(click, function() {
elewidth.innerhtml = this.value;
$(#dialogbody img).style.width = this.value + px;
});
$(#dialogclose).addeventlistener(click, function() {
eledialog.style.display = none;
return false;
});
} else {
alert(您现在使用的浏览器内力不足,为防止走火入魔,建议使用ie9+或chrome 20+浏览器~~);
}
})();