移动端常用的代码

.dialog{
position: fixed;
top:30%;
left:50%;
-ms-transform: translateX(-50%);
-moz-transform: translateX(-50%);
-o-transform: translateX(-50%);
-webkit-transform:translateX(-50%); ;
transform: translateX(-50%); 
}

/*遮罩层*/
.fixed{
position: fixed;
top: 0;
left: 0;
z-index: 10;
width: 100%;
height: 100%;
background-color: rgba(0,0,0,.4);
}

/*flexbox布局*/

.flexbox {
display: -webkit-box;
display: -moz-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
-moz-box-orient: horizontal;
-moz-box-direction: normal;
-webkit-flex-direction: row;
-ms-flex-direction: row;
flex-direction: row;

-webkit-flex-wrap: wrap;
flex-wrap: wrap;
}

.flexbox {
display: -webkit-box;
display: -moz-box;
display: -ms-flexbox;
display: -webkit-flex;
display: flex;
-webkit-flex-wrap: wrap;
flex-wrap: wrap;
}
.flexbox-center {
-webkit-box-pack: center;
-moz-box-pack: center;
-ms-flex-pack: center;
-webkit-justify-content: center;
justify-content: center;
}
.flexbox-middle {
-webkit-box-align: center;
-moz-box-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;
}
.flexchild {
display: block; //不能设置inline-block，否则会失效！
-webkit-box-flex: 1;
-moz-box-flex: 1;
-webkit-flex: 1;
-ms-flex: 1;
flex: 1;
word-wrap: break-word;

}