.btn-collapse:after{display:inline-block;width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-bottom:10px solid #000;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;content:"";transform:rotate(180deg);transition:all .25s linear;float:right;position:absolute;top:30%;right:10px}button.btn-collapse{width:500px;text-align:left;position:relative}.title-setting{background:#ced2d8;height:32px;display:flex;align-items:center}.btn-upload-image{position:relative;min-width:150px;background:#00b797;border:1px solid #d5d5d5;border-radius:3px;padding:5px 10px;color:#fff;height:35px;box-shadow:0 0 3px #d5d5d5;cursor:pointer}.btn-upload-image input{opacity:0;position:absolute;top:0;left:0;bottom:0;right:0;width:100%;height:100%;cursor:pointer}.btn-upload-image input:hover{cursor:pointer}.preview-img{width:150px;height:150px;margin-top:10px}.preview-img img{width:100%;height:100%}.btn-upload-image:hover{box-shadow:0 0 6px #d5d5d5}