body {
margin-right: 0;
padding: 0;
font-size: 0
}
div {
width: 120px;
height: 40px;
line-height: 40px;
text-align: center;
color: #fff;
margin-right: 2px;
margin-bottom: 2px;
border-radius: 5px;
background: #f08080;
font-size: 16px;
display: inline-block
}
.wrap {
height: 100vh;
overflow: hidden;
background: #f5f5f5
}
#box,#box2 {
width: 1157px;
height: 460px;
padding: 30px 0 0 30px;
box-sizing: border-box;
margin: 454px auto 0;
position: relative
}<section class="wrap">
<section id="box"></section>
</section>
<script>
var box = document.getElementById('box');
var colors = ['#78cc64','#58ce7d','#4fcdad','#4cc7dd','#469ee8','#465de8','#5846e8','#8346e8','#9e46e8'];
var str = '';
for(var i=1;i<10;i++){
for(var j=1;j<=i;j++){
// console.log(i, j);
var text = j + ' * ' + i + ' = ' + j * i; // 计算里面的数据
str += '<div style="background:' + colors[i - 1] + '">' + text + '</div>';
}
str += '<br/>';
}
box.innerHTML = str;
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