@import "../../style/themes/default"; @import "../../style/mixins/index"; @backtop-prefix-cls: ~"@{ant-prefix}-back-top"; .@{backtop-prefix-cls} { .reset-component; z-index: @zindex-back-top; position: fixed; right: 100px; bottom: 50px; height: 40px; width: 40px; cursor: pointer; &-content { height: 40px; width: 40px; border-radius: 20px; background-color: @back-top-bg; color: @back-top-color; text-align: center; transition: all .3s @ease-in-out; overflow: hidden; &:hover { background-color: @back-top-hover-bg; transition: all .3s @ease-in-out; } } &-icon { margin: 12px auto; width: 14px; height: 16px; background: url(data:image/png;base64,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) ~"100%/100%" no-repeat; } }