.tool-entrance{position:absolute;z-index:99;top:0;left:-30px;bottom:0;margin:auto;display:inline-block;width:30px;height:85px;padding:5px;background:#333;text-align:center;color:#fff;cursor:pointer;user-select:none}.tool-main{position:absolute;z-index:90;top:0;width:100%;height:100%;background:#ccc}.tool-input-group>input{width:40%}.tool-input-group>button{width:50%}.tool-btn{box-sizing:border-box;margin:5px}