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aspect-ratio less 怎么在css 中使用

发布时间:2021-03-24 15:40:24 来源:亿速云 阅读:195 作者:Leah 栏目:web开发

本篇文章为大家展示了aspect-ratio less 怎么在css 中使用,内容简明扼要并且容易理解,绝对能使你眼前一亮,通过这篇文章的详细介绍希望你能有所收获。

css媒体查询有一个 宽高比很方便,aspect-ratio ,可以直接使用宽/高 来进行页面适配   使用样例如下:
 // 宽高比在((320/50)+(728/90))/2 两个尺寸中间值以内 适配 320*50 设计图样式

@media screen and (min-aspect-ratio: ~"249/50") and (max-aspect-ratio: ~"29/4"){   @base: 320;   @convert: 375/@base;   .container{     width: 100vw;     height:100%;     position:relative;     display:flex;     flex-flow:row nowrap;     align-items: center;     .info-icon-box{       .width(46*@convert);       .height(46*@convert);       .border-radius(10*@convert);       .border(1@convert,#e3e3e3);       overflow: hidden;       .margin-left(10*@convert);       .min-width(46*@convert);       .max-width(46*@convert);       flex-grow: 0;       img {         width: 100%;         height: 100%;         .border-radius(10);         vertical-align: top;       }     }     .info-other{       flex-grow: 1;       display:flex;       flex-flow:column nowrap;       overflow: hidden;       height:100%;       .margin-left(10*@convert);       .info-wrap.roll-box{         height:200%;       }       .info-box{         width:100%;         height:50%;         flex-grow: 1;         display:flex;         flex-flow:row nowrap;         align-items: center;         .info{           width:48vw;           height: 100%;           flex-grow: 1;           display: flex;           //align-items: center;           flex-direction:column;           justify-content: center;           .info-title{             font-weight:bold;             .font-size(16*@convert);             .line-height(26*@convert);             color: #484848 ;             .margin-bottom(4*@convert);           }           .info-other-rate {             display: flex;             align-items: center;             justify-content: flex-start;             position:relative;             z-index:2;             .star-number{               .font-size(15*@convert);               color:#4a4a4a;               .padding-right(5*@convert);             }             .star-evaluate {               position: relative;               .width(100*@convert);               .height(16*@convert);               background: url("../../assets/images/star_gray.png") no-repeat 0 0;               background-size: cover;               overflow: hidden;               .star {                 position: absolute;                 top: 0;                 left: 0;                 display: inline-block;                 .height(16*@convert);                 background: url("../../assets/images/star.png") no-repeat 0 0;                 background-size: cover;                 overflow: hidden;               }               .star-1 {                 .width(8*@convert);               }               .star-2 {                 .width(21*@convert);               }               .star-3 {                 .width(29*@convert);               }               .star-4 {                 .width(42*@convert);               }               .star-5 {                 .width(50*@convert);               }               .star-6 {                 .width(63*@convert);               }               .star-7 {                 .width(71*@convert);               }               .star-8 {                 .width(84*@convert);               }               .star-9 {                 .width(92*@convert);               }               .star-10 {                 .width(100*@convert);               }             }           }           .info-desc-box{             display: none;           }         }         .info-install{           .min-width(66*@convert);           width:fit-content;           .height(40*@convert);           .line-height(40*@convert);           box-sizing: border-box;           .padding-all(0,4*@convert,0,4*@convert);           .font-size(14*@convert);           color:#fff;           text-align: center;           .margin-right(20*@convert);           background:url("../../assets/images/btn_download_short_shadow.png") no-repeat 0 0;           background-size:100% 100%;         }       }       .info-desc-box {         width:100%;         height:50%;         .padding-all(4*@convert, 26*@convert, 4*@convert, 0);         box-sizing: border-box;         overflow: hidden;         .info-desc{           .font-size(14*@convert);           .line-height(20*@convert);           color: #484848 ;           .info-other-rate{             display: none;           }         }       }     }   } } // 宽高比大于((320/50)+(728/90))/2 两个尺寸中间值 适配 728*90 设计图样式 @media screen and (min-aspect-ratio: ~"29/4"){   @base: 728;   @convert: 375/@base;   .container{     width: 100vw;     height:100%;     position:relative;     display:flex;     flex-flow:row nowrap;     align-items: center;     .info-icon-box{       .width(88*@convert);       .height(88*@convert);       .border-radius(10*@convert);       .border(1@convert,#e3e3e3);       overflow: hidden;       .margin-left(10*@convert);       .min-width(88*@convert);       .max-width(88*@convert);       flex-grow: 0;       img {         width: 100%;         height: 100%;         .border-radius(10);         vertical-align: top;       }     }     .info-other{       flex-grow: 1;       display:flex;       flex-flow:column nowrap;       overflow: hidden;       height:100%;       .margin-left(10*@convert);       .info-wrap{         height:100%;         .info-box{           width:100%;           height:100%;           flex-grow: 1;           display:flex;           flex-flow:row nowrap;           align-items: center;           .info{             width:48vw;             height: 100%;             flex-grow: 1;             display: flex;             flex-direction:column;             justify-content: center;             .margin-right(20*@convert);             .info-title-rate{               display: flex;               flex-flow: row nowrap;             }             .info-title{               font-weight:bold;               .font-size(24*@convert);               .line-height(37*@convert);               color: #484848 ;               .margin-bottom(4*@convert);             }             .info-other-rate {               display: flex;               align-items: center;               justify-content: flex-start;               position:relative;               z-index:2;               .star-number{                 .font-size(15*@convert);                 color:#4a4a4a;                 .padding-right(5*@convert);               }               .star-evaluate {                 position: relative;                 .width(100*@convert);                 .height(16*@convert);                 background: url("../../assets/images/star_gray.png") no-repeat 0 0;                 background-size: cover;                 overflow: hidden;                 .star {                   position: absolute;                   top: 0;                   left: 0;                   display: inline-block;                   .height(16*@convert);                   background: url("../../assets/images/star.png") no-repeat 0 0;                   background-size: cover;                   overflow: hidden;                 }                 .star-1 {                   .width(8*@convert);                 }                 .star-2 {                   .width(21*@convert);                 }                 .star-3 {                   .width(29*@convert);                 }                 .star-4 {                   .width(42*@convert);                 }                 .star-5 {                   .width(50*@convert);                 }                 .star-6 {                   .width(63*@convert);                 }                 .star-7 {                   .width(71*@convert);                 }                 .star-8 {                   .width(84*@convert);                 }                 .star-9 {                   .width(92*@convert);                 }                 .star-10 {                   .width(100*@convert);                 }               }             }             .info-desc-box {               width:100%;               .height(20*@convert);               .padding-all(4*@convert, 26*@convert, 4*@convert, 0);               box-sizing: border-box;               overflow: hidden;               .info-desc{                 .font-size(14*@convert);                 .line-height(20*@convert);                 color: #484848 ;                 .info-other-rate{                   display: none;                 }               }               .roll-box{                 height:auto;               }             }           }           .info-install{             .min-width(66*@convert);             width:fit-content;             .height(40*@convert);             .line-height(40*@convert);             box-sizing: border-box;             .padding-all(0,4*@convert,0,4*@convert);             .font-size(14*@convert);             color:#fff;             text-align: center;             .margin-right(20*@convert);             background:url("../../assets/images/btn_download_short_shadow.png") no-repeat 0 0;             background-size:100% 100%;           }         }       }       &.info-desc-box {         display: none;       }     }   } }

注意三点:

1、宽高比一定是比值的形式,不能直接写小数,宽/高

2、在less中直接写宽高比也不会生效,因为less会编译成小数,可以在比值前面加一个  ~   完美解决

3、避免样式覆盖,最好把大比例的媒体查询写在后面
 

上述内容就是aspect-ratio less 怎么在css 中使用,你们学到知识或技能了吗?如果还想学到更多技能或者丰富自己的知识储备,欢迎关注亿速云行业资讯频道。

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