better CSS rules, cleaner / faster code

<style>
        .sticky-placeholder-wrapper {
            position: relative;
            display: inline-block;
        }
            .sticky-placeholder-wrapper > label {
                -webkit-transition: opacity .2s ease-out;
                -moz-transition: opacity .2s ease-out;
                -ms-transition: opacity .2s ease-out;
                -o-transition: opacity .2s ease-out;
                transition: opacity .2s ease-out;
                cursor: text;
                position: absolute;
                overflow: hidden;
                -ms-text-overflow: ellipsis;
                -o-text-overflow: ellipsis;
                text-overflow: ellipsis;
                white-space: nowrap;
                padding-bottom: 0;
                -moz-box-sizing: border-box;
                -webkit-box-sizing: border-box;
                box-sizing: border-box;
                left: 0;
                top: 0;
            }
        fieldset > ol {
            list-style-type: none;
            padding: 0;
        }
    </style>