.ST-panel-default > .panel-heading {
    background-image: -webkit-linear-gradient(top, #f5f5f5 0%, #e8e8e8 100%);
    background-image: -o-linear-gradient(top, #f5f5f5 0%, #e8e8e8 100%);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#e8e8e8));
    background-image: linear-gradient(to bottom, #f5f5f5 0%, #e8e8e8 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff5f5f5', endColorstr='#ffe8e8e8', GradientType=0);
    background-repeat: repeat-x;
}

.ST-panel-tema > .panel-heading {
    background-image: -webkit-linear-gradient(top, #3E464C 0%, #2c3136 100%);
    background-image: -o-linear-gradient(top, #3E464C 0%, #2c3136 100%);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#3E464C), to(#2c3136));
    background-image: linear-gradient(to bottom, #3E464C 0%, #2c3136 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9534f', endColorstr='#ff2c3136', GradientType=0);
    background-repeat: repeat-x;
}

.ST-panel-dark > .panel-heading {
    background-image: -webkit-linear-gradient(top, #3E464C 0%, #2c3136 100%);
    background-image: -o-linear-gradient(top, #3E464C 0%, #2c3136 100%);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#3E464C), to(#2c3136));
    background-image: linear-gradient(to bottom, #3E464C 0%, #2c3136 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9534f', endColorstr='#ff2c3136', GradientType=0);
    background-repeat: repeat-x;
}
.ST-panel-light > .panel-heading {
    background-image: -webkit-linear-gradient(top, #f5f5f5 0%, #EAEAEA 100%);
    background-image: -o-linear-gradient(top, #f5f5f5 0%, #EAEAEA 100%);
    background-image: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#EAEAEA));
    background-image: linear-gradient(to bottom, #f5f5f5 0%, #EAEAEA 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff5f5f5', endColorstr='#ffe8e8e8', GradientType=0);
    background-repeat: repeat-x;
    border: 1px solid #e9e9e9;
}