WxApp Snippet

对话框效果

  

wxss

.right-Triangle{
    float:right;
    margin-top: 35rpx;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-left: 12px solid yellowgreen;
    border-bottom: 8px solid transparent;
}
.right-message{
    float: right;
    margin-top: 10rpx;
    line-height: 65rpx;
    background: yellowgreen;
    border-radius: 10rpx;
    font-size: 12px;
    max-width: 300rpx;
    overflow:hidden;
    word-break: break-all;
    word-wrap: break-word;
}

文字居中

wxss

.box{
  width:100rpx;
  height:100rpx;
  margin:10rpx;
  background-color: sandybrown;
  text-align: center;
  line-height: 100rpx;
}

这里用到line-height 和view的高度一样，文字就会垂直居中；text-align设置文字水平居中

view 垂直居中

如果要让view垂直居中于父view，第一种方法父view设置display:flex ，子view设置margin:auto

wxml

fwef

wxss

.boxo8{
    display: flex;
    width:300rpx;
    height:300rpx;
    background-color:antiquewhite;
}
.boxi8{
line-height: 200rpx;
text-align: center;
margin: auto;
width:200rpx;
height:200rpx;
background-color:sandybrown;
}

第二种方法 子view设置position:absolute ，top left:50% ，然后设置margin为高宽的一半来修正偏移

.boxo1{
    position:relative;
    width:300rpx;
    height:300rpx;
    background-color:yellow;   
    
}
.boxi1{
    position:absolute;
    top:50%;
    left:50%;
    margin:-100rpx -100rpx;
    width:200rpx;
    height:200rpx;
    line-height:200rpx;
    text-align: center;
    background-color:sandybrown;
}

第三种方法是第二种的变种，通过top: 0; left: 0; bottom: 0; right: 0; 和margin:auto;来自动计算

.boxo1{
    position:relative;
    width:300rpx;
    height:300rpx;
    background-color:yellow;   
    
}
.boxi2{
    position:absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    margin:auto;
    width:200rpx;
    height:200rpx;
    line-height:200rpx;
    text-align: center;
    background-color:sandybrown;
}

或者transform:translate(-50%,-50%);

.boxi3{
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    width:200rpx;
    height:200rpx;
    line-height:200rpx;
    text-align: center;
    background-color:sandybrown;
}

listview item的下划线和箭头

wxss

.widget{
    position: relative;
    padding-top: 26rpx;
    padding-bottom: 26rpx;
    padding-left: 40rpx;
    padding-right: 40rpx;
}
.widget__arrow{
    position: absolute;
    top: 28rpx;
    right: 44rpx;
    width: 32rpx;
    height: 32rpx;
}
.widget__line{
    content: " ";
    position: absolute;
    left: 40rpx;
    top: 0;
    right: 0;
    height: 2rpx;
    background-color: #F0F0F0;
}

购物车数量选择

wxss

.action-btns {
  width: 200rpx;
  height: 50rpx;
  display: flex;
  flex-flow: row;
  justify-content: space-between;
  align-items: center;
  border: 1rpx solid #e9e9eb;
}
.action-btns .action-btn {
  width: 45rpx;
  height: 45rpx;
  margin: 5rpx;
}
.btn-minus {
  border-right: 1rpx solid #e5e5e5;
}
.btn-plus {
  border-left: 1rpx solid #e5e5e5;
}