The content of the commonly used input text box is automatically vertically centered and the default prompt text is empty when clicked

<input type="text" name="wd1" id="qy_1" maxlength="100" style="color:gray;width:199px;height:30px;line-height:30px;" autocomplete="off" value="Please enter the company name" style="color:gray;" onfocus="javascript:if(this.value == 'Please enter the company name') this.value = ''; this.style.color='gray';" onblur="if(this.value == '') {this.value = 'Please enter the company name'; this.style.color = 'gray';}">