input:focus {
    background-color: #F5E28B;
    <!--value:''; -->
    <!--onfocus="if (this.value == 'e') {this.value=''}"-->
    <!--onfocus:"if(this.value==this.defaultValue){this.value='';}" ;-->
}

    
    /*input { border: 0px solid black;  background-color:#e1e1e1;   }*/
    input#bigbutton {
    width:100px;
<!--    background: #F5E28B; /*the colour of the button*/-->
    background-color:#6b6dbb; /*required for browsers that don't support gradients*/
    background: -webkit-gradient(linear, left top, left bottom, from(#ffffff), to(#848484));
    background: -webkit-linear-gradient(top, #ffffff, #848484);
    background: -moz-linear-gradient(top, #ffffff, #b2b2b2);
    background: -o-linear-gradient(top, #ffffff, #848484);
    background: linear-gradient(top, #ffffff, #848484);
    padding: 7px 8px 8px; /*apply some padding inside the button*/
    border:0px solid #aeaeae; /*required or the default border for the browser will appear*/
    cursor:pointer; /*forces the cursor to change to a hand when the button is hovered*/
    /*style the text*/
    font-size:0.7em;
    font-family:'lato-light', Arial, sans-serif; /*Oswald is available from http://www.google.com/webfonts/specimen/Oswald*/
    letter-spacing:.06em;
    text-shadow: 0 -1px 0px rgba(254, 254, 254 254); /*give the text a shadow - doesn't appear in Opera 12.02 or earlier*/
    color: #5a5a5a;
    /*use box-shadow to give the button some depth - see cssdemos.tupence.co.uk/box-shadow.htm#demo7 for more info on this technique*/
    -webkit-box-shadow: inset 0px 1px 0px #c0c0c0, 0px 5px 0px 0px #8c8c8c, 0px 10px 5px #999;
    -moz-box-shadow: inset 0px 1px 0px #c0c0c0, 0px 5px 0px 0px #8c8c8c, 0px 10px 5px #999;
    box-shadow: inset 0px 1px 0px #c0c0c0, 0px 5px 0px 0px #8c8c8c, 0px 10px 5px #999;
    /*give the corners a small curve*/
    -moz-border-radius: 12px;
    -webkit-border-radius: 12px;
    border-radius: 12px;
    }
    /***SET THE BUTTON'S HOVER AND FOCUS STATES***/
    input#bigbutton:hover, input#bigbutton:focus {
    color:#dfe7ea;
    /*reduce the size of the shadow to give a pushed effect*/
    -webkit-box-shadow: inset 0px 1px 0px #c8c8c8, 0px 3px 0px 0px #b5251b, 0px 2px 5px #999;
    -moz-box-shadow: inset 0px 1px 0px #c8c8c8, 0px 3px 0px 0px #b5251b, 0px 2px 5px #999;
    box-shadow: inset 0px 1px 0px #c8c8c8, 0px 3px 0px 0px #b5251b, 0px 2px 5px #999;
    
    }