我有一个父母,父母中有y且高度固定。我希望居中对齐其孩子。 子级的内容可能会有所不同,有时会溢出父级并触发滚动条。在这些情况下,孩子的顶部和底部内容被删去了。。
我希望孩子要居中对齐,但前提是孩子要比父母小。或者,它始终可以居中对齐,但是内容不应该被剪掉。
在此处检查问题:https://jsfiddle.net/gumy023z/
.parent {
background-color: red;
height: 40px;
overflow-y: scroll;
/* Comment out the flex, and all the content will be available */
display: flex;
justify-content: center;
align-items: center;
}
<div class="parent">
<div class="child">
This is a test <br> This is a test <br> This is a test
</div>
</div>
答案 0 :(得分:2)
alignment 将在 flexbox 的 flex轴中工作。因此,您可以切换到列flexbox 并提供min-height: 0
( flex项目的默认min-width: auto
设置为child
).parent {
background-color: red;
height: 40px;
overflow-y: auto;
display: flex;
flex-direction: column; /* ADDED */
justify-content: center;
align-items: center;
}
.child {
min-height: 0; /* ADDED */
}
元素-请参见下面的演示
<div class="parent">
<div class="child">
1. This is a test <br> 2. This is a test <br> 3. This is a test
</div>
</div>
load_csv : function (callback) {
if(this.encoding === null) this.encoding = 'UTF-8';
this.loadingItems = true;
var fileReader = new FileReader();
fileReader.onload = function (evt) {
fileContentStr = evt.target.result;
var items = CSV.parse(fileContentStr);
callback(items);
};
fileReader.readAsText(this.file, this.encoding);
},
prepareData : function (data) {
var fields = [];
var items = [];
data[0].forEach(function (elem, i) {
fields.push(elem);
});
for(var i=1; i<data.length; i++){
var item = [];
for(var j=0; j<data[i].length; j++){
if(!isNaN(data[i][j])){
item.push(Number(data[i][j]));
}
else {
item.push(data[i][j]);
}
}
items.push(item);
}
let dataset = new DataFrame(items, fields);
this.loadingItems = false;
this.$emit('loaded-items', dataset);
}