@font-face {
    font-family: 'photo';
    src: url('../fonts/photo.eot');
    src: url('../fonts/photo.eot') format('embedded-opentype'),
         url('../fonts/photo.woff2') format('woff2'),
         url('../fonts/photo.woff') format('woff'),
         url('../fonts/photo.ttf') format('truetype'),
         url('../fonts/photo.svg#photo') format('svg');
}

.icon{
    font-family:'photo';
    display: inline-block;
    vertical-align: top;
    width:100%;
    font-style: normal;
    font-size:2em;
    text-align: center;
}

.brightness:before{/*亮度*/
    content: 'B';
}
.sharpening:before{/*锐化*/
    content: 'C';
}
.saturation:before{/*对比度*/
    content: 'D';
}
.temperature:before{/*色温*/
    content: 'E';
}
.close:before{/*色温*/
    content: 'F';
}
.yes:before { /*色温*/
    content: 'G';
}
.adjustment:before{
    content: 'H';
}
.filter:before{
    content: 'I';
}
.link:before{
    content: 'J';
}
.more:before{
    content: 'K';
}
.image:before{
    content: 'L';
}